What's the density of a piece of wood that has a mass of 7g and a volume of 10cm3

Suppose ACT Reading scores are normally distributed with a mean of 21.4 and a standard deviation of 5.9. A university plans to award scholarships to students whose scores are in the top 9%.

Harry pays $3.50 sales tax on a $70 item. What is the sales tax rate?

What is the volume of a sphere with a diameter of 22 inches

The ideal length of a particular metal rod is 30.5 cm. The measured length may vary from the ideal length by at most 0.015 cm. What is the range of acceptable lengths for the rod?

The sum of two numbers is - 17. Their difference is 41. Find the numbers.

Jamie Is Sewing14 identical costumes for the school play. She Needs 210 Buttons to complete all of the costumes. How many buttons will she sew onto each costume?

Stacy owes $40 on her credit card. After she made a payment, her new balance was $10. What was the amount of her payment?

Solve find the smallest of three consecutive even integers whose sum is - 30

Twenty percent (20%) of 90 equals A. 12 B. 15 C. 18 D. 21

A regular polygon has an interior angle of 172º. Find the number of sides of this polygon.