Problem $2-20($Static$)$

A fast$-$food restaurant serves hamburgers, cheeseburgers, and chicken sandwiches. The restaurant counts a cheeseburger as equivalent to $1\mathrm{.}25$ hamburgers and chicken sandwiches as $0\mathrm{.}8$ hamburger. Current employment is five full$-$time employees who each work a $40-$hour week.

a$.$ If the restaurant sold $700$ hamburgers, $900$ cheeseburgers, and $500$ chicken sandwiches in one week, what is its productivity?

$($Round your answer to $2$ decimal places.$)$

hamburger equivalents per labor hour

b$.$ What would its productivity have been if it had sold the same number of sandwiches $(2,100),$ but the mix was $700$ of each type?

$($Round your answer to $2$ decimal places.$)$

Productivity

hamburger equivalents per labor hour

$\}$