Answer:
Im confused on what the question is. The equation you have is correct. Youhave the Y=Mx+b format so M=6 and b=20
Step-by-step explanation:
76 cm
P=2L+2w
324=2(86)+2w
324=172+2w
324-172=2w
2w=152
w=152/2
w=76 cm