O=63cm
a=b+4
O=2a+2b
O=2(b+4)+2b
O=2b+8+2b
63=4b+8
4b=63-8
4b=55
b=55/4=13.75
a=13.75+4=17.75
Answer:
3rd option
Step-by-step explanation:
We have two kind of necks and three different colours so the andswer would be 3rd option
Crew-neck :CB,CY,CG
V-neck : VB,VY,VG
0
4 + 0 = 0
thers no question
