What is the difference between -8 and the absolute value of 6

Difference is subtraction.
The absolute value of 6 is 6.
-8 - 6= -14
When subtracting a negative from a positive it is like adding them when they are both positive.

The difference is -14 thats what i got on the calculator

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.