$($b$)$ Use the high$-$low method to develop a schedule identifying the amount of each cost that is fixed per month or variable per unit. Total the amounts under each category to develop an equation for total monthly costs.

Round variable cost answers to two decimal places.

Fixed Costs Variable Costs

Cost of food sold Answer $9$

$0$

Answer $10$

$2$

X

Wages and fringe benefits Answer $11$

$0$

Answer $12$

$0$

X

Fees paid delivery help Answer $13$

$0$

Answer $14$

$0\mathrm{.}24$

X

Rent on building Answer $15$

Answer $16$

$0$

X

Depreciation on equipment Answer $17$

$0$

Answer $18$

$0$

X

Utilities Answer $19$

$0$

Answer $20$

$0$

X

Supplies $($soap$,$ floor wax, etc.$)$ Answer $21$

$0$

Answer $22$

$0$

X

Administrative costs Answer $23$

$0$

Answer $24$

$0$

X

Total costs equation Answer $25$

$0$

Answer $26$

$0$

X

$($c$)$ Predict total costs for a monthly sales volume of $9,100$ units.

$Answer $27$

$0$