The cost to mail a package is $5 for the first 2 pounds and 40 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?
a. f(x) = 0.4(x 2)
b. f(x) = 10 0.4x
c. f(x) = 5 0.4x

Option (c) is correct.

f(x) = 5 + 0.04x

Step-by-step explanation:

Given :  The cost to mail a package is $5 for the first 2 pounds and 40 cents for each additional ounce.

We have to choose out of given functions that  represents the cost to mail a package if x is the number of ounces over 2 pounds.

Consider f(x) represents the cost to mail a package if x is the number of ounces over 2 pounds.

Given : x is the number of ounces over 2 pounds that is over 2 pounds the package mail  has x ounce.

100 cent = $1

Also, they charge 40 cents for each additional ounce

Thus  for x ounce they charge = $0.4x

Thus, f(x) = 5 + 0.04x

Thus,  Option (c) is correct.