Sam found a new tennis racket on sale for 10% off. If he paid $36 for the tennis racket, what was
the original price?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81