Which statement is true?
21 is a multiple of 6.
21 is a multiple of 5.
21 is a multiple of 4.
21 is a multiple of 3.

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

The half-life of a certain material is 0.002 second. approximately how much of a 14-gram sample will be left after 0.004 second? a. 12 grams b. 3.5 grams c. 0.06 gram d. 7 grams

The graph below represents which system of inequalities? a. y< -2x+6 y< (or equal to) x+2 b. y< (or equal to) -2x+6 y c. y< 2/3 x - 2 y> (or equal to) 2x +2 d. none of the above