When the company pays rent expense for the current month, what is the effect on the accounting equation for that company?

decrease the stockholder equity and decrease in assets

Explanation:

As we know, the accounting equation is  

Total assets = Total liabilities + stockholder equity

In the given case,  

The rent is paid for the current month, so the journal entry would be

Rent expense A/c Dr

    To Cash A/c

(Being rent is paid)

So it decreases the stockholder equity as it includes the income and expenses part and it decreases in assets as it reduces the cash balance

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.