#9 the sum of two angles is 90 degrees, creating a right angle.
#10 the sum of the two angles is 180 because the form a supplementary angle
no solutions → C
The 2 given lines are parallel and never intersect thus no solution
430,500/ 750,000 = 0.574
0.574 x 100 = 57.4 %
The answer is B. Hope this helps!(:
