Can someone pls help me with this?

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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?

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27