Please show the calculations of how these numbers are found.

Thanks!

Cash collections, accounts receivable Total June sales for Roy's Catering are expected to be $450,000. Of each month's sales, 80 percent is expected to be on credit. The Accounts Receivable balance at May 31 is $119,600, of which $90,000 represents the remainder of May credit sales. There are no receivables from months prior to April. The collection pattern of Roy's Catering credit sales is 70 percent in the month of sale, 20 percent in the month following the sale, and 10 percent in the second month following the sale. Roy's Catering has no uncollectible accounts. a. What were total sales for April? \$ b. What were credit sales for May? \$ c. What are projected cash collections for June? \$ d. What is the expected balance of Accounts Receivable at June 30?$