Answer:
(a) 117.1 billions of dollars
(b) 187.6 billions of dollars
Step-by-step explanation:
The sales S (in billions of dollars) for walgreens from 2000 through 2010 can be modeled by the exponential function.
[tex]S(t)=22.52(1.125)^{t}[/tex]
where t is the time in years, with t = 0 corresponding to 2000.
(a) In 2014, t = 2014 - 2000 = 14
[tex]S(t)=22.52(1.125)^{14}=117.1[/tex]
(b) In 2018, t = 2018 - 2000 = 18
[tex]S(t)=22.52(1.125)^{18}=187.6[/tex]