4. Use the meaning of multiplication to explain why a box that is 5 inches high, 4 inches wide, and 3 inches long has a volume of 5 X (4 X 3) cubic inches Explain the parentheses in the expression 5 X (4 × 3).

Verify that an acre contains 43,560 square feet.

If a cube with a surface area of 24 square centimeters holds at most 1 liter, how many liters can fill a cube with a surface area of 96 square centimeters?

Craig owns a ready mis concrete company. Craig receives an order for 1.5 cubic yards of concrete. This mixture of concrete contains sand, cement, gravel, and water; for each pound of water, there are 5lb of sand, 2lb of cement, and 7lb of gravel. Find the total weight of the order (in pounds), assuming a cubic yeard of concrete weighs 4000 lb, and how many pounds of each ingredient must be used. answer in the back of the book is:  water: 400lb sand: 2000lb cement: 800lb gravel: 2800lb please help me set up the equations needed to solve the problem and get the answers given.