Based on past data, Mack's Pool Supply has constructed the following equation for the sales of its house brand of chlorine tablets:
Q = 1,000 + 100 t
where Q is quantity and t is time (in years), with 2007 = 0.
a. What is the sales projection for 2013?
b. The tablet sales are seasonal, with the following quarterly indexes:
Quarter 1.......................................80%
Quarter 2.....................................100%
Quarter 3.....................................125%
Quarter 4.......................................95%
What is the quarterly sales projection for 2013?