problem: For the month of February, 2009, Silver’s Spa Supplies had total sales revenue of $92,600. Sales returns were $3,450. Sales discounts totaled $765. Cost of goods sold for the business was $72,338.

[A] find out Net Sales for Silver’s Spa Supplies in February? 

[B] find out Gross Profit for Silver’s Spa Supplies in February? 

[C] find out the Gross Profit rate for Silver’s Spa Supplies in February?