hewitt company expects cash sales for july of 10000 and a 17% monthly increase during august and september. credit sales of 7,000 in july should be followed by 31% increases during august and september. what are budgeted cash sales and budgeted credit sales for september respectively? (round answers to the nearest dollar)

a. 8547 and 5344

b. 11700 and 9170

c. 13689 and 12013

d. 13100 and 8190