Melanie finds paint at the store for $4.95 per gallon. She also finds a Paintbrush for
$3.75. Write an equation for y, the total cost, for x gallons of paint and 1 paintbrush.
y = 1.2x
y = 8.7%
y = 3.75x + 4.95
y = 4.95x + 3.75