She has 100 chairs that she needs to arrange in a perfect square. How many rows of chairs does she need to make?

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)