Question

Pls help I’ll give you 35 points

Answer 1

Answer:

b=21

Step-by-step explanation:

P=2(a+b)

54=2(6+b)

54=12+2b

2b+12=54

2b=54-12

2b=42

b=21

6*21 (area)=126

I hope I helped!

How to verify my answer:

P=2(6+21

P=(12+42)

P=54

AHA! So my answer is correct!

Hope I helped!