MID 9. Rong Comp. expects cash sales for July of $15,000 and a 20% monthly increase during August and September. Credit sales of $6,000 in July should be followed by 10% decreases during August and September. What are budgeted cash sales and budgeted credit sales for September? a. $12,150 and $8,640 b. $13,500 and $7,200 c. $18,000 and $5,400 d. $21,600 and $4,860