2 2 user: the cost to mail a package is $7 for the first 2 pounds and 30 cents for each additional ounce. which of the following functions represents the cost to mail a package if x is the number of ounces over 2 pounds? ƒ(x ) = 7 0.3x ƒ(x ) = 14 0.3x ƒ(x ) = 0.3(x 2)