answer should be 7500, 10, variable, fixed

What is the total cost and average cost for shipping and distribution of 750 units? What is the behaviour of shipping cost and distribution cost? Type your answers in all of the blanks and submit (Do not use \$ sign, commas, decimals, or spaces in your answer). Total cost is \$ Average cost is $ Shipping is a cost (possible answers are variable, fixed, mixed, or step) Distribution is a cost (possible answers are variable, fixed, mixed, or step)