Answer:
i. [tex]P=4y+6[/tex]
ii. [tex]P=30\:ft[/tex]
Step-by-step explanation:
The given rectangular garden has width, [tex]w=3ft[/tex] and length, [tex]l=2y\:ft[/tex].
The perimeter of a rectangle is calculated using the formula;
[tex]P=2l+2w[/tex]
We substitute the given dimensions into the formula to get;
[tex]P=2(2y)+2(3)[/tex]
[tex]\Rightarrow P=4y+6[/tex]
We substitute;
[tex]y=6[/tex] to obtain;
[tex]\Rightarrow P=4(6)+6[/tex]
Simplify;
[tex]\Rightarrow P=24+6[/tex]
[tex]\Rightarrow P=30ft[/tex]
