In a slow year, Deutsche Burgers will produce $3\mathrm{.}2$ million hamburgers at a total cost of $$4\mathrm{.}7$ million. In a good year, it can produce $6\mathrm{.}4$

million hamburgers at a total cost of $$6\mathrm{.}0$ million.

a$.$ What are the fixed costs of hamburger production?

Note: Enter your answer in millions rounded to $1$ decimal place. Do not round intermediate calculations.

b$.$ What are the variable costs when the firm produces $3\mathrm{.}2$ million hamburgers?

Note: Enter your answer in millions rounded to $1$ decimal place. Do not round intermediate calculations.

c$.$ What is the average cost per burger when the firm produces $1\mathrm{.}60$ million hamburgers?

Note: Round your answer to $2$ decimal places. Do not round intermediate calculations.

d$.$ What is the average cost when the firm produces $3\mathrm{.}2$ million hamburgers?

Note: Round your answer to $2$ decimal places. Do not round intermediate calculations.