Melody Inc. had a November ending cash balance of $9,000 . It had sales of $10,000 in November, $20,000 sales in December, and projects sales of $15,000 for January, $20,000 for February and $35,000 for March. The firm collects its receivables in the month after the sale. Given this information and ignoring disbursements, Required: calculate Melodys cash balance at the end of March.