Misty bought 3 cd's. the country music cd cost $12.the roc cd cost 2/3 as much as the country music. the platinum edition cd cost twice as much as the rock cd. what was the cost of the three cd's?

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

What is the value of x when x + 7 = 21?