Answer:

Step-by-step explanation:
Given
See attachment for missing details
Required
Determine the gas mileage for the trip
First, we calculate the miles driven

--- d
Next, we calculate the amount of gas used

---- g
The gas mileage is then calculated as:



Hence, the gas mileage is 26 miles per gallon
8,000 thousands first is ones next tens , hundreds next thousands
Subtraction is the opposite of addition. eg. 9+5=14 but 14-5=9