fifth of a mile and 20 cents for each additional one-fifth of a mile.
Which of the following expressions represents the charge, in cents, for
a taxi ride of exactly x miles, where x is a positive integer?(A) 2 x + 80
(B) 3 x
(C) 100 x + 180
(D) 200 x + 80
(E) 300 x5 . During the eighteenth century, the population of country X increased
by 1,000 percent. During the nineteenth century, the population
increased by 500 percent. By what percent did the population
increase over the two-century period?
(A) 1,500%
(B) 1,700%
(C) 4,900%
(D) 5,000%
(E) 6,500%6 . George’s average (arithmetic mean) score on the first four English
tests of the semester is 92. If he earns a score of 77 on the fifth test,
what will his new average be?
(A) 84.5
(B) 86.0
(C) 87.5