Sales: Amarket analyst is studying sales figures for two competing products, Alpha and Beta. In the accompanying table, A represents the annual sales of Alpha, in thousands of dollars, and B...

Sales: Amarket analyst is studying sales figures for two competing products, Alpha and Beta. In the accompanying table, A represents the annual sales of Alpha, in thousands of dollars, and B represents the annual sales of Beta, in thousands of dollars. Time t is measured in years since 2005.

a. Use exponential regression to find models for A and B. (Round regression parameters to two decimal places.)

b. By what annual percentage are sales for Alpha growing? By what annual percentage are sales for Beta growing?

c. Use your models to predict when sales for Beta will overtake sales for Alpha.