David can proofread15 reports in an hour while Armando can proofread 37reports in an hour. If they have 400 reports to proofread, how much time will it take between the two of them?

Jas has 145 dollars in her savings account she earns 36 dollars a week mowing lawns if jas saves all of her money after how many weeks will she have 433 saved

Pyramid A is a square pyramid with a base side length of 7 inches and a height of 6 inches. Pyramid B has a volume of 3,136 in3. How many times bigger is the volume of pyramid B than pyramid A? Select one: a. 15 b. 32 c. 54 d. 75

Solving Exponential and Logarithmic Equations In Exercise, solve for x. 100 (1.21) x = 110

The average weights of the dogs are the same for the morning and afternoon groups. Which group of dogs would be easiest to walk as one group? Why?

John can reach 60 centimeters above the top of his head. If John is 2 meters tall, how high can he reach? centimeters

Adding unlike fractions

2 - b/3 = - 5/2 What is the value of b?

What is a Dependent event

Three less than the product of 18

The perimeter of a parallelogram is 72 meters. The length of the parallelogram is 4 meters less than its width. What is the length and the width of the parallelogram?