on january 1, year 2 grande company had a $18,000 balance in the accounts receivable account and a zero balance in the allowance for doubtful accounts account. during year 2, grande provided $72,000 of service on account. the company collected $68,500 cash from accounts receivable. uncollectible accounts are estimated to be 2% of sales on account. what is the amount of cash flow from operating activities that would appear on the year 2 statement of cash flows?