a store offers packing and mailing services to customers. the cost of shipping a box is a combination of a…

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?\no (f(x)=2.25x + 5)\no (f(x)=5x + 2.25)\no (f(x)=2.25x - 5)\no (f(x)=5x - 2.25)

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?\no (f(x)=2.25x + 5)\no (f(x)=5x + 2.25)\no (f(x)=2.25x - 5)\no (f(x)=5x - 2.25)

Answer

Explanation:

Step1: Identify fixed and variable costs

The fixed packing - fee is $5. The variable cost is $2.25 per pound. If $x$ is the weight in pounds, the cost based on weight is $2.25x$.

Step2: Form the cost - function

The total shipping cost $f(x)$ is the sum of the fixed cost and the variable cost. So, $f(x)=2.25x + 5$.

Answer:

$f(x)=2.25x + 5$