Answer:
26 posts
Step-by-step explanation:
find perimeter:
42+42+36+36= 156
divide by 6
156/6=26
A. 0
3ab+5b-6
= 3(-1)(3)+5(3)-6
=3(-3)+15-6
=-9+9
=0 ( you have to subtract because they don't have the same signs)
the top left
