Well, 80 dollars is the price originally, so that 80 is by its self. Now we see that its 0.2 ever mile after so lets do the math.
The equation would be $80 + $0.2x = 124
Do the math, subtract 80 from both sides
0.2x = 44
No divide by 0.2
x= 220
since the first $80 is 250 miles what would the rest be? well since you did the math and got x = 220 that means after you have 220 addition miles. Add the two up :) 220+250= 470 :D
