In pythagoras's theorem, generally a is the shortest side, b is the second shortest and c is the hypotenuse:

. However, there is a problem. The questions aren't actually possible without using sine, cosine, and tangent (which are mathematical ratios if you didn't know). I can help you with this but it will take time explaining.
Answer:
y = mx + b is slope intercept form
Y - y1 = m(x - x1) is slope point form
Ax + Bv = C is standard form
Step-by-step explanation:
I can't believe you do this stuff in middle school, I only started learning this in 10th grade lol
Answer:
The movie was 2 hours and 42 minutes
Step-by-step explanation:
There are 2 hours from 11:30 to 1:30 and then from 1:30 to 2:12 is 42 minutes