In 2005, you have 70 songs in your favorite iTunes playlist. In 2007, you have 140 songs. In 2010, you have 70. Enter the exact answers. (a) What is the average rate of change per year in the number of songs in your favorite iTunes playlist between 2005 and 2007? The average rate of change is 35 (b) What is the average rate of change per year in the number of songs in your favorite iTunes playlist between 2007 and 2010? The average rate of change is 23 songs per year. The average rate of change is 0 songs per year. (c) What is the average rate of change per year in the number of songs in your favorite iTunes playlist between 2005 and 2010? songs per year.

My class this semester is 1000 points in total. I have 444 out of 667.5 correct with 332.5 points remaining for the rest of the semester. My grade is 67.58%. How many points do I need to earn to get at least 70% before the end of the semester?

Before an increase in excise duty on tea, 800 people out of a sample of 1000 were consumers of tea. After the increase in duty, 800 people were consumers of tea in a sample of 1200 persons. Find whether there is significant decrease in the consumption of tea after the increase in duty. LOS 5%.

Wednesday Tony has $20 and saves $1.50 each day. Joan has $52 and spends $2.50 each day. In how many days will Tony and Joan have the same amount of money?

Tyler wants to calculate his grade in his accounting class. His test grades are a 77%, 62% 85%, 80%. What is his average in the class?

Emma earns a $80,000 salary in the first year of her career. Each year, she gets a 5% raise. How much does Emma earn in total in the first 11 years of her career?

Bartholomew is shooting for a B test-average in his Art History class.  The cut-off score for a B is 80%.  His first 4 test scores are as follows:  62, 49, 98, 89, ___.

When jaylen starts high school

Fernando's salary in 1976 was $8,300, and he bought a Honda Civic for $3,200. His salary in 2017 was $57,000, and he bought a Honda Civic for $21,180. From 1976 to 2017, how does the percent change in his salary compare to the percent change in car prices?