Combine the like terms to create an equivalent expression

10q + 5 + 6q - 1

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Three friends are comparing the prices of various packages of golf balls at a sporting goods store. hector finds a package of 6 golf balls that costs $4.50.

The ideal weight of a nickel is 0.176 ounce. to check that there are 40 nickels in a roll, a bank weighs the roll and allows for an error of 0.015 ounce in total weight