Yolanda babysits for the couple next door. she averages making $50 a night and sits for three nights a month. she also works about 30 hours a month at the store and makes $8 an hour. what is her monthly income?

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.

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