Let x represent the number of days for which Jim wants to rent the car.
The rental company charges $21 per day to rent a car and $0.10 for every mile driven. He will travel 250 miles. It means that the cost of travelling 250 miles in x days is expressed as
21x + 0.1 × 250
= 21x + 25
If he has $115 to spend, then the inequality that can be used to determine the maximum number of days that Jim can rent a car is
