13. The record for the 200-meter run was 19.75 seconds. In 2003, it was 19.32 seconds. Suppose the record for the 200-meter run decreases linearly. Find an equation which models the record for the 200 meter run in terms of x, the number of years since 1983. Round your components to the nearer ten- thousandth.

In 2010, the number of clown costumes sold at a single costume shop was 15.  By 2015, that number had grown to 30.  Assuming a constant increase in clown costume sales, calculate the unit rate of change (slope) from 2010 to 2015.  Round your answer to the nearest tenth.  Do not include units with your answer.

The number of hours of video uploaded to YouTube per minute is shown in the table below. Year # of hours of video uploaded per minute 2007 6 2008 10 2009 20 2010 24 2011 48 2012 60 2013 100   Let y be the video upload rate at x years since 2005.   Construct a scatterplot by hand.               Is the relationship linear or exponential?  Increasing or decreasing?   Write an equation modeling the number of hours of video uploaded per minute if the initial number of hours is 2.6 and it increases by 59%.     Use your equation to find the number of hours uploaded in 2015.

8. Egg production in the United States was 12936.8 million pounds in 2016 up from 9074.4 million pounds in 1996. Assume that the increase is linear. Write a formula for the situation. round values to thousandths.  Define variables as Y = Years since 1996and E = Eggs in ? of pounds a. Formula: b. Use your formula and algebra to complete the sentence: The number of eggs produced will surpass 14000 million in the year

Braden invested $900 in a mutual fund. Each year, Braden's investment grew by 2%. Which equation calculates y, the value of Braden's investment after 4 years? y = 900 · 1.024 y = 900 · 0.024 O y = 900 · 40.2 y = 1.02 · 9004

Two companies report a 15% gain in online sales over the last year. Suppose Company Q had 25 online sales and Company Z had 150 online sales last year. Sam says that they have the same growth while Anna says that they do not.  Who is correct?  Justify your answer using absolute change and percent change.

A car initially sold for $23,999. Its class life is 12 years, and the car depreciates by $750 each year. Express this as a linear function. Find the salvage value. Then, find the value after six years.

Based on the veterinarian's equation, in how many weeks will the puppy weigh 12.6 ounces?Enter your answer in the box. Only enter a number

The average price of a home in a certain town was $125,000 in 2009, but home prices are rising 2% per year. Write an equation that models this situation with t being the number of years since 2009.   If this rate of growth continues, what will the averge price of a home in that town be in 2020?

The price of a certain object was $9.75 in 2006 and $15.00 in 2012. Assume that the price has been increasing at a constant rate since 2000. Determine the rate of change in the price of the object, that is, how much the price increases each year. Do not round your answer. K Write an equation to model the price of the object over time, with y representing the price of the object in dollars, and a representing the number of years since 2000. Write your final answer in the form y = mx + b. (You may use the point-slope form to help you find the equation.) Looking at your equation, what was the price of the object in the year 2000? If necessary, round to your answer to two decimal places. S How much does the object cost now, in 2022? $