Who has a neck but no head, arms but no hands what is it?

A T-shirt.

Explanation:

A T-shirt has a hole for the neck (collar) and two arms, but does not have hands.

a clock

Explanation:

a clock has two hands to point to the hour and minute

and depends on the type of clock you can have a standing clock and it has a neck

the answer is

r ≈5.641

plug in the area of 100 yards into the equation

100=

divide each side by pi

≈ 31.8309=

take the square root of each side to find r

=r

r ≈5.641

the correct answer is   d. a picture depicting people applauding a country's leader.