How much did American shoppers spend online on Black Friday in 2012? Write your answer in dollars, in ordinary notation.  Do not include the $ sign; it will confuse the grading software. Between which years on the chart did Cyber Monday spending increase the least?

Q: The median house value in Seattle Washington increased by 22.5% over the past three years.if the…

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Q: The graph illustrates a normal distribution for the prices paid for a television. The mean price…

A: Given Information: Mean μ=1200 Standard deviation σ=100 Using Empirical Rule: (a) To find the…

Q: There is a worldwide shortage of nurses that is projected to be 20% below requirements by 2020.…

A: We need to calculate the percentage of schools that had an increase in application using the given…

Q: If I scored 78 out of 120 on an exam, what would be my grade percentage for the exam?

A: Total marks for the exam = 120   Obtained marks = 78   We have to calculate grade percentage

Q: Platinum was sold at $2025 per ounce last year. This year it sells for $2925 per ounce.  What is…

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Q: A refrigerator that originally cost $1300 was reduced to $910. What is the relative change in price?…

A: First of all we calculate the change . Then find the relative change.

Q: what is the index of hourly earnings for the most recent month based on 1998?

A: To calculate the index of hourly earnings for the most recent month based on 1998,we can use the…

Q: In 2014, the median household income in Durham-Chapel Hill, NC was $50,504. If the median household…

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Q: Economists predict that Americans will spend $1,180 on Summer Vacation in 2015, this is up 5.6% from…

A: The objective is to find what did americans spend i 2014.

Q: Last year, Lien earned $1,200 more than her husband. Together they earned $41,600. How much did each…

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Q: The last Harry Potter book went on sale at 12:01 a.m. on July 21, 2007. The publisher Scholastic…

A: The portion of a number can be evaluated by multiplying the fraction of the portion required to the…

Q: The highest point in Houston, Texas stands about 0.03 kilometers above sea level when rounded to the…

A: We need to find which among the following options represents to 0.03.

Q: In mid-2016, the world's population was about 7.4 billion people. The population of the United…

A: Given Data :  World's population = 7.4 billion  OR  World's population = 7.4*1000 = 7400 million…

Q: what if it's going up by ten percent more ? not 10$

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Q: Using the same chart/data.   To the nearest​ million, how much should the grand prize be so that you…

A: For the lottery to be profitable, we need E(X) - 1 > 0. If the cost of a lottery ticket is $1,…

Q: average price of used homes went from $108,900 to $127,000 in one year. What is the increase of the…

A: Given query is to find increase percentage.

Q: the U.S. Census Bureau states that in 2010 the average commute time for Wake County workers was 23.9…

A: The term per cent means for every hundred. A fraction whose denominator is 100 is called a…

Q: In mid-2016, the world's population was about 7.4 billion people. The population of the United…

A: We have given In mid-2016, the world's population was about 7.4 billion people. The population of…

Q: Margaret owns a restaurant and she was keeping track of the total dollar sales for the weekend…

A: the average daily dollar sales for the restaurant was $2,425.42 Total sale = 2,425.42 * 3 = 7276.26

Q: of piano in 1995 was $18500. In 2012 the average price of the piano was $25900. What is the…

A: Introduction: The formula of percentage increase is given by, percentage…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.