The sale price S (in dollars) of an item is given by the formula S=L-rL , where L is the list price (in dollars) and r is the discount rate (in decimal form). a. Solve the formula for r .

r=

b. The list price of the shirt is $30. after the discount rate its $18. What is the discount rate?

The discount rate=

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

Find the quotient with the restriction.