Scores on an exam are normally distributed with a mean of 76 and a standard deviation of 10. In a group of 230 tests, how many students score within one standard deviation of the mean?

Ron gets $5 on the first day at work, the square of that amount on the second day, and three times the amount of the second day on the third day. how much does ron earn in three days?

Bonnie made two trips to Sweet Frog for frozen yogurt this week. She paid $0.45 per ounce each time. She purchased 7.2 ounces the first time and 6.8 ounces the second time.

Solve tis problem y=5 - 12

The base of a triangular pyramid is a triangle with a base of 4 inches and a height of 3.5 inches. The height of the triangular pyramid is 3.3 inches. What is the volume of the triangular pyramid? (this is different than my last question!)

How many hundredths in 38/100

How many feet is a mile?

Tina has 1/4 of a cake. He divides it between his 6 friends. How much of the whole cake will each friend get?

Vince has 26 beads. how many different arrays can Vince draw to represent the total number of beads he has? list the sizes of the arrays.

The sum of three times a number and 4 is 19

How many times can 12 go into 804 and how many remainder is left