Yellow Cab Taxi charges a $1.75 flat rate for a ride in the cab. In addition to that, they charge $0.45 per mile. Katie has no more than $12 to spend on a ride. At most, how many miles can Katie travel without exceeding her spending limit?
Let x be the number of miles: 12.00 = 1.75 + 0.45x
10.25 = 0.45x
x = 10.25 / 0.45
x = 22 miles (discard the fraction)