Forecasting Collections. Here is a forecast of sales by National Bromide for the first 4 months of 2001 (figures in thousands of dollars):

Month: 1 2 3 4
Cash sales 15 24 18 14
Sales on credit 100 120 90 70
On average, 50 percent of credit sales are paid for in the current month, 30 percent in the next month, and the remainder in the month after that. What are expected cash collections in months 3 and 4?