Answer:
I believe the answer is D-100.3 degrees, however, I'm not 100% sure.
Step-by-step explanation:
Answer:
84
Step-by-step explanation:
4 test grades with an average of 80 would have a total of 80x4=320.
75+83+78=236
320-236=84
Answer:
b
Step-by-step explanation:
if a is perp to b, and b is parallel to c, and c is parallel to d, then a is perp to d