Picture please because I can’t help without a picture or something
The answer is B I hope you get it.
You'd need to find the distance AROUND the garden, which is also PERIMETER.
To find the perimeter of a circle, you use the following equation:

=


=
25.13 ft I don't know what your answer options are, but chose the option closest to 25.13 ft
Y+4x =7
Or y = -4x + 7
On comparing with point slope form
y = mx+c
We get m = -4 = slope of given line
As the required line is parallel to given line its slope is equal to -4