Help please I ONLY HAVE TODAY

1) it should be

2) To avoid making this mistake remember that when you subtract 4-10 you get -6 and you can't have a negative exponent so you have to move it to the denominater for it to be positive.

it is not that hard all u have to do is plot the graph

step-by-step explanation:

if i'm not wrong, i would say that the third angle has (72) because the three sides of all triangles have 180 degrees and if we subtract 180 - 62 - 40 = (72) / but i'm not sure about 40 yd.