You can do 15-5=10 and then you have 3 left to subtract. Which means 10-3=7
Answer:

Step-by-step explanation:
To avoid confusion, distribute the negative amongst all terms in the second set of parentheses.
I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.
Your question evokes several thoughts. Here are two of them:. 1). It takes 3 points not all on the same line to define a plane. 2). Two points ALWAYS lie on the same line.
Answer:
they are acute
and are also equivalent
that's the relation in the 2 angles