There were 800 spools of thread made today at the factory, 120 of these spools of thread are defective. What percent of the spools of thread are defective?

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

Maurice has 54 fewer comic books than rebecca. they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers