Fix Slow Computer 1.0

This calculator will tell you how many miles to the gallon your vehicle is getting! Then, in addition, will tell you how much each mile costs you! Using this calculator is easy. Write down the number of miles on the odometer at fillup. Then write down how many gallons to the thousandths (.xxx) it took to fill the tank. Finally write down the miles on the odometer when the gas guage gets to the same place it was when you made the previous fillup. Enter these numbers in the calculator. Note: if you need help figuing when you have used the previous fllups gas, put a piece of masking tape above (or bellow) the gas guage and put a pencil mark at the spot the needle was at the first fillup of the test.