A/3=7/10
21=10a
a=2.1
100a=100*2.1=210
Answer:
1. The top and bottom lines (-5,3) (8,3) is parallel to line (-2,-2) (11,-2). The sides Lines (-5,3) (-2,-2) is parallel to line (8,3) (11,-2).
2. None of the line create a right angle. None are able to create a box at the angle
42/6 but if you want to simplify, it's 7
F(x)=2(x-5)^2-24 simple algebra