consider company has sales may june and july 11 million 10 million and 12 million respective

Consider a company that has sales in May, June, and July of $11 million, $10 million, and $12 million, respectively. The firm is paid by 25% of its customers in the month of the sales, 50% in the following month, and 23% in the next month (2% are bad sales and never pay). What is the cash collected in July?