A shipping company charges $12 per package plus $0.28 per ounce. Which equation can be used to find the
weight of a package that costs $16.20 to ship?
A 12 + 0.28x = 16.20
B 12x + 0.28 = 16.20
C 12 – 0.28x = 16.20
D 12x – 0.28 = 16.20