The manager of a restaurant is implementing a new pricing plan for lemonade. They will charge $0.45 for the cup plus $0.30 per ounce, , of lemonade. The pricing plan is represented by the expression below.

0.45 + 0.30n

How much will the restaurant charge for a 12-ounce cup of lemonade?

A.
$3.60

B.
$4.05

C.
$5.70

D.
$9.00

B. $4.05

To calculate the total cost for a 12-ounce cup of lemonade, plug in 12 for n in the expression:

0.45 + 0.30(12) = 0.45 + 3.60 = $4.05

Therefore, the restaurant will charge $4.05 for a 12-ounce cup of lemonade.