The volume of a cube is found by using the formula l³, where l is the side length. if the side length is 4x³, what is the volume of the cube?

V = (4x³)³ = 64x⁹  ← answer

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.