SHOW ALL WORK. If correct, I will give thumbs up!

3. The balance in Accounts Receivable at the beginning of the period amounted to $2,080. During the period $7,600 of credit sales were made to customers. If the ending balance in Accounts Receivable amounted to $1,320, and uncollectible accounts expense amounted to $540, then what would be the amount of cash inflow from customers that would appear in the operating activities section of the cash flow statement