You need to start by writing an equation to solve this problem.
If the car is only rented for one day, then that can be your b value in the equation y=mx+b. The b will be substituted for $35. The m value, or the growth rate, is the $0.30. The x value is the x, the miles, which we are trying to figure out. The y value will be $167.
The final equation is 167=0.30x+35. Now we solve for x
167=0.30x+35 Remove alike terms
-35 -35
132=0.30x Divide by the number in front of the variable (x) to get it alone
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.30 .30
x=440
