F(x)=x²+4 What is the value of when f(x)=4

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288