Answer:
8.5 units
Step-by-step explanation:
The distance between two points is given by

Taking points (-12, 11) and (-18, 17) as the first and second points respectively then


d=8.48528137423857 units
Rounded off to nearest tenths
d=8.5 units
This is Commutative property of addition
Answer:
4
Step-by-step explanation:
9x=10x-4
x=4
i think the answer is 56.55