Here is a forecast of sales by National Bromide for the first 4 months of 2015 (figures in thousands of dollars):
Month: 1 2 3 4
Cash sales 24 33 27 23
Credit sales 145 165 135 115
On average, 60% of credit sales are paid for in the current month, 20% in the next month, and the remainder in the month after that. What are the expected cash collections in months 3 and 4?