Juliet rented a car for one day from a company that charges $80 per day plus $0.15 per mile driven. If she was charged a total of $98 for the rental and mileage, for how many miles of driving was Juliet charged? (Assume there is no tax.)

The correct answer is: 120

Hint:
The concept used in this question is of representing a situation in the form of an equation.
In equation, LHS = RHS, always
In this question, equation with one variable is used, which contain only one variable
Take constant value as it is the question and,
Represent variable value as x or any alphabet.
Step by step explanation: 
Given:
Rent of car for one day = $80
Rent for per mile = $0.15
Total rent = $98
Step 1
Let the mile travelled by juliet bex miles
So, according to given information,
The rent for x miles will be 0.15 × x =   $0.15x
Now, the total rent will be,
⇒ Rent for one day + rent for x miles
⇒ $80 + $0.15x
⇒ 80 + 0.15x
Step 2.
As, it is given that total rent is $98
∴ 80 + 0.15x = 98
⇒ 0.15x = 98 - 80
⇒ 0.15x = 18
⇒ x = 
⇒ x = 120
Hence, the juliet was charged 120 miles of driving