There are 40 crayons in a box. Of all the crayons in the box, 2/5 are a shade of red. How many crayons in the box are a shade of red? Explain how you found your answer?

The area of a trapezoid is 152. the height is 16 and the length of one of the sides is 6. find the length of the second parallel side.

Use the rewritten formula to find the width of a rectangle with an area of 42 square inches and a length of 16.8 inches.

Researchers randomly choose two groups from 15 volunteers. Over a period of 9 weeks, one group watches television before going to sleep, and the other does not. Volunteers wear monitoring devices while sleeping, and researchers record dream activity.

A bag as white and black ball in it. 3 of them are black. How many sets of 6 can be made from the 12 balls? How many of the total 6 sets contain 3 black balls?

Mindy and Troy combined ate 9 pieces of the wedding cake. Mindy ate 3 pieces of cake and Troy had 1/4 of the total cake. a) Write an equation to determine how many pieces of cake (c) there were in total. b) Find the total number of pieces of cake.

Find the hypotenuse c of the right triangle a=15, b=20

What is 21 1/4% expressed as a fraction?

One characteristic of all linear functions is that they will change by

There are 4 jacks in a standard deck of 52 cards. If Megan selects a card at random, what is the probability it will not be a jack?

A pilot sets a heading of 110 and an air speed of 250 mph. If a wind is blowing 28 mph from the south, what is the ground speed and course of the plane?