1) 136 is the circumference of a circle with what area? we know C=πd.
136=πd
136/π=d
d=43.290 so the radius is half that, or
r=21.645
taking area as our measure of size,
A=πr²
A=π•21.645²
A=1471.855. answer C is closest. difference is in how they and I rounded
2) c, e, and f
The formula is y=mx + b, or rearranged would be m= y/x -b/x.
Since none of the terms have the same variables the like terms would be (A) because they are both constants
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