Candice and Holly sold cookies to raise money for charity. They bought the cookies already wrapped in sets of three cookies for $0.50 each set and they purchased 115 sets. They were able to sell all of the sets of cookies for $1.50 each. What was their gross profit?

Read each question several times and then break it down.  Make certain you understand when you are adding, subtracting, multiplying, dividing or doing a combination of calculations.