Question

the perimeter and area of a rectangular box are 18 and 300 square metres respectively then its length

Answer 1

2(l+b) = 18
l+b = 9
l = (9-b).........(1)

area
l x b = 300
(9-b) x b = 300.......(2)

(solve equation 2 get b and then put it in equation 1 to get " l ".

rank me the brainlest..... please