The ampitude/frequency/period of y=1/4cos1/2x is 4 pie

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5

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.

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount