Answer:
6x-3
Step-by-step explanation:
3(2x-1)
DISTRIBUTE
3*2x = 6x
3*(-1) = -3
BGC=180-90
=90
BGC=BGE+EGC
BGC=BGE+15
90=BGE+15
BGE=90-15
BGE=75
BGE=AGF
AGF=X,
X =75
6m + 6m + 15m + 15m = 42m
no 40m will not be enough
-18
Hope it helps....................................................