How to get the volume for 2 4/5 yards long, 2 yards wide and 3/5 yards tall?

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Which of the following is the maximum value of the equation y=-x^2+2x+5 a. 5 b. 6 c. 2. d. 1

Asalsa recipe uses green pepper, onion, and tomato in the extended ratio 3: 5: 7. how many cups of tomato are needed to make 105 cups of salsa? a. 7 b. 21 c. 35 d. 49