Answer this question =D (easy)

If u Jen wants to build a fence around her garden, and it is a 7ft by 9ft rectangle, and he wants to put each post 1 foot apart, how many post will she use? (each peg is 1 foot long)

P=2(7+9)
P=32
32/2=16

Jen needs 16 pegs for the fence around her garden.

so if each post is 1ft wide and you want a gap 1ft wide, then you should draw a diagram (that's what I did)
So for the 7ft side I would need 4 posts
and the 9ft side I would need 5 posts
there are 2 7ft sides and 2 9 ft sides in a rectangle
therefore the total number of post = 18 post
hope that helps you