Answer:
A (first picture)
Step-by-step explanation:
Based on the picture, the lines are both perpendicular and the red line splits AB into two equal parts (bisects it), so it must represent the perpendicular bisector of AB.
(1/2)b^2 + 5b - 3
300+200+200 = 700.
so simple
hope this helps you.
300,000
