From the following facts calculate what Becky Blain paid Rice Co. for the purchase of a dining

Question:

From the following facts calculate what Becky Blain paid Rice Co. for the purchase of a dining room set. Sales terms are 1/10, n/30.
a. Sales ticket price before tax, $10,000, dated April 5.
b. Sales tax 5%.
c. Returned one defective chair for credit of $800 on April 8.
d. Paid bill on April 13?