A manager of a store that sells and installs spas wants to prepare a forecast for January, February, and March of next year. Her forecasts are a combination of trend and seasonality. She uses the following equation to estimate the trend component of monthly demand: F t
​=70+4t, where t=0 in June of last year. Seasonal relatives are 0.89 for February, and 0.95 for March. What demands should she predict? (Round your answers to 2 decimal places.) Hint: t=0 (June of last year), t=19 (January of next year) a. Forecast of February of next year b. Forecast of March of next year