Please help me understand my homwork

K-Too Everwear Corporation can manufacture mountain climbing shoes for $19.65 per in pair in variable raw material costs and $13.69 per in variable labor expense. The shoes sell for $110 per pair. Last year, production was 130,000 pairs. Fixed cost were $790,000

What were the total production cost?

What were the total marginal cost pair?

What were the total average ?

Minimum total revenue

A proposed project has a fixed cost of $43,000 per year. The operating cash flow at 9, 000 units is $61,000

Ignoring the effect of taxes, what is the degree of operating leverage

DOL ?

If units sold rise from 9,000 to 9,200, what will be the increase in operating cash flow?

OCF at 9,200 units?

What is the new degree of operating leverage?

New DOL?