Assume that a set of test scores is normally distributed with a mean of 480 and a standard deviation of 20. What percentage of scores lies between 470 and 526?

What is the area for 4cm, 1 1/2and 3 1/2 what is the answer to that?

If two numbers exist in a ratio of 3 : 8, and the smaller of the numbers is 9, what is the larger number? A 24 B 21 с 16 D 27

How many solutions does the system have? use elimination x+3y=13 5x=6y=38

Which is equal to √-16

Experimental probability and theoretical of spinning an even number?

Emilia spent $25 on four boxes of tulip bulbs to plant in her garden. If she spent the same amount for each box of bulbs, how much did Emilia spend on each box?

Solve for the variable in 6/18=x/36

Which of the following is a composite number? A. 19 B. 63 C. 1 D. 0

A truck is carrying grapefruit juice, mango juice and orange juice bottles in a ratio of 1:1:7. If there are 105 orange juice bottles, then how many juice bottles in total are there? Add an explanation

14/8 as a mixed number