Answer:
210 miles
Explanation:
Let m represent the number of miles driven. According to the problem statement, the charges are ...
total charge = daily charge + (mileage charge)×(miles driven)
Substituting the given values and the variable we have defined, we get ...
158.80 = 100 + 0.28m . . . . . the equation
58.80 = 0.28m . . . . . . subtract 100
210 = m . . . . . . . . . . . . divide by 0.28 . . . . the solution
You drove 210 miles. . . . . . . . the answer to the question asked