Can you please help me answer the following questions?

Quantity	Average Variable Cost	Variable Cost	Total Cost	Marginal Cost	Average Total Cost
1	$15	$15	$55		$55
2	$20	$40	$80	$25	$40
3	$30	$90	$130	$50	$43
4	$40	$160	$200	$70	$50
5	$50	$250	$290	$90	$58
6	$60	$360	$400	$110	$67

If the price for a pair of shoes is currently $90, what is the total quantity supplied i If the price for a pair of shoes is currently $90, what is the total quantity supplied in the market? Explain how you determined your answer