Answer:
52-13 = 39
Step-by-step explanation:
This is simple, next time use a calculator and calculate yourself

should be the right answer
Answer:
It will be A because of if you round it it would be -7
Answer:
I cant give you an answer but hints:
First you gotta know the angles of the triangle
then how many are there
then those lines in the middle is dividing lines so
right angles are 90 degrees
I would go for B then.
if not I'm sorry