Scott wants to accumulate $3,800 over a period of 11 years so that a cash payment can be made for roof maintenance on his summer cottage. To have this amount when it is needed, he will make annual deposits at the end of each year into a savings account that earns 7.0% annual interest per year. How much must each annual deposit be

Amanager of a store that sells and installs spas wants to prepare a forecast for january and june 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: ft = 30+5t, where t = 1 in january of this year. seasonal relatives are 0.60 for january and 1.50 for june. what demands should she predict for january and june of next year