algebra
posted by kayla .
Specialty tshirts are being sold online for $30 plus a onetime handling fee of $2.75. The total cost is a function of the number of tshirts bought. What function rule models the cost of the tshirts? Evaluate the function for 5 tshirts.

a. C = 30x + 2.75.
b. C = 30*5 + 2.75 = $152.75.