1 A statckable CD rack holds 25 CDs and costs $4. Charlie has a collection of 150 CDs. How much will it cost him to buy enough racks to hold all of his CDs?

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

Which expression gives you the distance between the points (5,1)and(9,-6)

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin