Question

A store offers packing and mailing services to customers. The cost of shipping a box is a combination of a flat packing fee of $5 and an amount based on the weight in pounds of the box, $2.25 per pound. Which equation represents the shipping cost as a function of x, the weight in pounds?

Answer 1

f(x) = 2.25x + 5

Step-by-step explanation:

The cost of shipping a box from the store is a combination of a flat packing fee of $5 and an amount based on the weight in pounds of the box, which is $2.25 per pound - also, x represents the weight of the box in pounds. The flat packing fee of $5 is added to the product of $2.25 and x, which gives us the total shipping cost.

Therefore, option A is the correct answer: f(x) = 2.25x + 5.