Present value)Sarah Wiggum would like to make a single investment and have $2.1 million at the time of her retirement in 30 years. She has found a mutual fund that will earn 7 percent annually. How much will Sarah have to investtoday? If Sarah earned an annual return of 18 percent, how soon could she thenretire?

a.If Sarah can earn 7 percent annually for the next 30 years, the amount of money she will have to invest today is $----?

. (Round to the nearestcent.)

b.If Sarah can earn an annual return of 18 percent, the number of years until she could retire is --- ? years