$1.$

For each of the following,determine the missing amounts.

Sales

Cost of

Gross

Operating

Net

Revenue

Goods Sold

Profit

Expenses

Income

$1)$

$$70,000$

$($a$)$

$$45,000$

$($b$)$

$$7,000$

$2)$

$($c$)$

$$87,000$

$$55,000$

$$45,000$

$($d$)$

$($a$)\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

$($b$)\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

$($c$)\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

$($d$)\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$