To make concrete, you need 3 times as much sand as cement. When Aaron was asked to formulate an equation about the relationship between sand and cement in concrete, here’s what he wrote:

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

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