Kerry groomed 15 cats in 10 hours and watson groomed 10 cats in 8 hours

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

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?