Answer quickly pls: it is an accounting question:

$3,500

Explanation:

Profit is calculated by subtracting expenses for revenue.

In the case,

Revenues are

fees from client  $20,000

Rent received   $ 8,000

total revenue  $28,000

expenses

insurance       $8,000

advertising       $3,000

loan interest  $ 12,000

motor expense      $1,500

   $24,500

profit = $28,000 -  $24,500

profits =$3,500

Overhead applied= $2000,$2,800,$600 for Job1, 2 and 3 respectively.

Explanation:

Overhead applied = Direct materials x rate of overhead on materials cost

                                                      Job 1      Job 2     Job 3

Direct materials used . . . . . . . . . $5,000   $7,000    $1,500

Rate                                                  40%         40%         40%

Overhead applied                         $2000       $2,800    $600

Calculation

Job 1 = 40% x 5000 = $2000

Job 2 = $7,000 x 40%=$2800

Job 3 -$1,500 x 40%=$600