Question

Hi please answer the question. The faster u answer the more benefit u gain. So answer it correctly And I will mark the most appropriate and quick answer as brainliest​

Answer 1

Answer:

l=16m

Step-by-step explanation:

as l=5b-4

b=b

p=2(l+b)

40=2(5b-4+b)

40=2(6b-4)

40=12b-8

40+8=12b

48=12b

b=48÷12

b=4

thus l= 16m

hope it helps : )