Blanca has dimes and quarters in her purse. The number of dimes is 2 less than 5times the number of quarters. Let q represent the number of quarters.
Write an expression for the number of dimes.

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?

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?

The measure of an angle is 117°. what is the measure of a supplementary angle?