A data set has a minimum of 7, a maximum of 22, a mean of 13, a first quartile of 10, and a third quartile of 15. What is its IQR?

A. 12

B. 25

C. 5

D. 2

Mrs. Morton has a special reward system for her class. When all her students behave well, she rewards them by putting 3 marbles into a marble jar. When the jar has 100 or more marbles, the students have a party. Right now, the jar has 24 marbles.

Joe needs to do 3 loads of laundry if the washers take a dollar and $1.25 per load in the dryer take $1 per load how many quarters will do I need to bring

Mr. Garcia worked 7 1/5 hours on Wednesday. He took a break every 3 3/5 hours. How many breaks did he take?

Let a and b be rational numbers, and let b be non-zero. Is a/b rational or irrational?

1 At a chicken farm, 396 eggs must be packed into crates each day. Each crate is packed with 18 eggs. Today, the farm staff has already packed 10 crates. how many more crates of eggs (c) still need to be packed today?

Solve for x. x/9 = 14 (A) 126 (B) 130 (C) 139 (D) 146

A copiy machine can duplicate 2400 copies in one hour. How many copies can it make in 5 hours?

Write $1.50 to $2.50 as a fraction in simplest form

A study of college graduates involves three variables: income level, job satisfaction, and one-way commute times to work. List some ways the variables might be confounded. a.) People with long commutes will have very high incomes. b.

What is 10.31 as a mixed number