Answer:
820 
Step-by-step explanation:
I believe the answer is A because the formula for area is length times width.
Answer:
55°
Step-by-step explanation:
if the middle is straight, then x+35°=90°
Answer:
∠B = 60°
Step-by-step explanation:
They are supplementary angles, which means they add up to 180°.
∠B + ∠A = 180
? + 120 = 180
? = 180 - 120
? = 60°
It should be this y=1/2x+3