Question 1126356
let w be the width of the garden, then
:
2l +2w = 70
:
l +w = 35
:
A.i)  20 +w = 35
: 
w = 15 meters
:
A.ii)  Area = l * w = 20 * 15 = 300 square meters
:
B)  w = 35 -l
:
C)  Area = l * (35 -l) = 35l - l^2
: