A travel agent offers a vacation plan which costs 'a' dollars for the first day, and a/5 for each additional day. How much does a vacation of b days cost, where b > 1.
Select
A) (ab+4a)/2
B) (ab+8a)/5
C) (ab+4a)/5
D) (ab+4a)/3
E) (ab+a)/5
(ab+4a)/5ost = a + (b-1)*a/5 = (5a + (b - 1)*a)/5 = (ab+4a)/5   Answer is (ab+4a)/5
<result>C</result>
A travel agent offers a vacation plan which costs 'a' dollars for the first day, and a/5 for each additional day. How much does a vacation of b days cost, where b > 1.