Answer:
Step-by-step explanation:
Michael is using a number line to evaluate the expression -8 - 3. After locating -8 on the number line , Michael could rewrite the expression as -8 + -3 and move 3 spaces to the left.
perimeter = sum of all sides
27 = 9+7.8+x
x (third side) = 10.2
On a map, they would be 7 inches apart, if that's what you're asking.
