4/5 -1/2 in simplest form?

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)

The curved part of the figure is the semicircle what is the best approximation for the area of this figure

If the numbers below were ordered from least to greatest, which number could you use to replace the blank? 0.20, 2/5 □ 3 /4 , 8/10