Sarah purchased $15.75 worth of coffee that sold for $.25 per pound how many pounds of coffee did Sarah buy?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.