If blueberries cost $4.00 per pound, how many pounds of blueberries can you buy for $13.00

Divide the total amount by the amount per pound to find the number of pounds:

$13.00 / $4.00 per pound = 3.25 pounds

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13