Evaluate each absolute value expression below. | 2 | + | 4 | | − 3 | + | 5 | | − 7 | + | − 1 | − | 6 |

| 2 | + | 4 | = 6

| − 3 | + | 5 | = 8

| − 7 | + | − 1 | − | 6 | = 2

Anything that is an absolute value is positive so you just add the numbers normally... even if the numbers are negative..

( if you have any questions please comment on this question so I can help you)

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2