Gemstone Suppliers reports net income of $$150,000.$ Included in net income is a gain on the sale of land of $$12,500.$ A comparison of this year$$s and last year$$s balance sheets reveals an increase in accounts receivable of $$20,000,$ an increase in inventory of $$12,500,$ and a decrease in accounts payable of $$40,000.$

Required:

Prepare the operating activities section of the statement of cash flows using the indirect method. $($Amounts to be deducted should be indicated with a minus sign.$)$