Respuesta :

Answer:

b = 15

Step-by-step explanation:

P = 2*(a+b)

2* (25 + b) = 80

2b = 30

b = 15

Answer:

b = 15

Step-by-step explanation:

P = 2*(a+b)

2* (25 + b) = 80

2b = 30

b = 15