Choose the student who evaluated the power correctly. Alexander’s work 53 = 3 × 3 × 3 × 3 × 3 53 = 243 Simone’s work 53 = 5 × 3 53 = 15 Ricky’s work 53 = 5 × 5 × 5 53 = 125

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

What is the least common factor of 6 and 8

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?