What is the interquartile range of this data set?

2,5,9, 11, 18, 30, 42, 48, 71, 73, 81

A. 21

B. 79

C. 62

D. 41

In one school, about 56% of eighth graders, or 140 students have brown hair. How many students are in the eight grade.

There are 17783 students at your university. The student population is expected to grow by 7% per year for the next few years. What is the expected student population after 3 years? Round your answer to the nearest whole number.

a rectangualr garden is to be enclosed usinf two different types of fencinf. one side of the garden boarders a road and the fencing for this side costs $25 per foot. The fencinf for the other sides costs $10 per foot

Factor by grouping. 21m2 - 29m - 10

Which is greater 1/3, 3/8, 2/5 or 1/2?30

What is two multiplied by two

Paul has 57 oranges to share with Dwayne and Ashley. The number of oranges Paul gives to Dwayne is 3 more than five times the number of oranges he gives to Ashely. If Paul has no oranges left over, how many oranges does Paul give to Ashely?

A carpenter has several boards of equal length. He cuts three fifth of each board. After cutting the boards, the carpenter notices that he has enough pieces left over tom make up the same length as 4 of the original boards.

What is 22 * 19 + area model

What is the inverse of the function f (x) = 2x + 1? h (x) = 1/2x - 1/2 h (x) = 1/2x + 1/2 h (x) = 1/2x - 2 h (x) = 1/2 x + 2