toll for a car and trailer on a turnpike is 1/2 times the toll for a car alone if the toll for a car and trailer is 1.05 what is the toll for a car alone

the sum the digits of a two digit number is 12 when the digits are reversed the resulting number is 18 less than the original number what is the original number

a student studied 18 hours in one week.what was total number of hours he will have to study during the next week in order to average 2 hours of study per day for the entire 14 day period