30 ! calculate the percent increase or decrease between the starting and ending quantities below. round your answer to one decimal place.

1) start: 3 end: 10

2) start: 9 end: 20

3) start: 100 end: 85

Asphere has a diameter of 10 in. what is the volume of the sphere?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Which of these sequences is a geometric sequence a 1,2,4, 7, 11, 16, 22. b. 2.4.8.14.22.38 c.3.6.9. 15.18,21 d. 3,9,27,81,243,729,