Answer:
b = 10
Step-by-step explanation:
P = 2 (l + b)
l = 15
P = 50
Substitute
50 = 2 (15 + b)
multiply
50 = 30 + 2b
subtract
20 = 2b
divide
b = 10
Answer:
... ................................
I believe the answer is A
The answer to your channel the dark the world to is their the day is deleting your phone call is deleting your phone call to