Consider the following data from Sintek Inc.

January February March

Sales in Units $4,0004,5005,000$

Sales Revenue $$400,000$ $$450,000$ $$500,000$

Direct Materials $72,00081,00090,000$

Direct Labor $88,00099,000110,000$

Manufacturing Overhead $50,00052,50055,000$

Sales Commission $28,00031,50035,000$

Other Selling expenses $40,00041,00042,000$

Administrative expenses $32,00032,00032,000$

Answer the following questions:

$1.$ What is the average price per unit sold?

$2.$ Write the cost equation for direct materials.

$3.$ Write the cost equation for direct labour.

$4.$ Write the cost equation for manufacturing overhead.

$5.$ Write the cost equation for sales commission.

$6.$ Write the cost equation for other selling expenses.

$7.$ Write the cost equation for administrative expenses.

$8.$ Compute the total variable product cost per unit.

$9.$ Compute the total variable selling and administrative costs per unit.

$10.$ If $4100$ units are sold, what is the sales commission expense?

$11.$ If $4700$ units are sold, what is the manufacturing overhead cost?

$12.$ If $4,700$ units are sold, what is the total cost?

$13.$ What is the contribution margin per unit?

$14.$ If $4,000$ units are sold, what is the total contribution margin?

$15.$ If $4,600$ units are sold, what is the net income?