Can Any Body Help Me Solve This Question?

Question

Black Cab Taxi charges a $4.95 flat rate for a ride in the cab. In addition to that, they charge $0.49 per mile. Katie has no more than $20 to spend on a ride. At most, how many miles can Katie travel without exceeding her spending limit?

a. 30

b. 29

c. 50

d. 25

Answer 1

20= 4.95 + .49m

.49m = 20-4.95 = 15.05

m = 15.05/.49 = about 30.7 minutes maximum to stay within $20 total

a. is the best answer, 30 minutes