walter enterprises expects its september sales to be 20% higher than its august sales of $155,000. purchases were $105,000 in august and are expected to be $125,000 in september. all sales are on credit and are collected as follows: 35% in the month of the sale and 65% in the following month. all merchandise purchases are on credit and are paid as follows: 20% in the month of purchase and 80% in the following month. the beginning cash balance on september 1 is $7,000. the ending cash balance on september 30 would be: