Bob purchased a case of soft drinks (24 cans per case) for $30, what is the unit rate per can?

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Which math sentence can be used to determine if the triangle is a right triangle?

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?