need to solve the following problem

PROBLEM ONE:

.

PROBLEM TWO:

.

PROBLEM THREE:

PROBLEM FOUR:

A pair of shoes that wholesales for $28.79 have the following costs:

Manufacturing Labor 2.25

Materials 4.95

Factory overhead, operating expense 8.5

Sales costs 4.5

Advertising 2.93

Research & Development 2

Interest 0.33

Net Income 3.33

                        

A. Which are variable, and which are fixed?

B. If output were to rise, what would happen to average total costs,
and why?

.

PROBLEM FIVE (EXTRA CREDIT 15 POINTS):

.

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