21/4 of what number is 72?

A builder estimate he needs 1600 nails for a job he is doing. The nails are sold in boxes of 100. How many boxes he needs

Write a formula for the interior angle measure of a regular polygon.

if you had to read for 20 hours in total and you read 20 minutes a day how many days would it take you to finish?

A person walks 1/4 mile in 1/8 hour. What's the persons speed in miles per 1 hour

Tom starts a lawnmowing business. Before he can begin, he purchases a new lawnmower. Each weekend he mows the same number of lawns and earns the same amount of money. Write an equation to show how much money he's earned at any week.

A number multiplied by 2/5 is 3/20

What is 2x - x + 7 = x + 3 + 4

8x-4y=16 -5x-5y=5 Graph the both

Which correlation coefficient represents no relationship between x and y? * r = - 0.02 r = 0.41 r = - 0.78 r = 0.96

46. Merchandising If 12 items are in a dozen, 12 dozen are in a gross, and 12 gross are in a great-gross, how many items are in a great-gross?