Does this figure have rotational symmetry? a) no, a square cannot be rotated. b) yes, the figure can be rotated 90°. c) yes, the figure can be rotated 180°. d) no, no matter how it is rotated it will look different.

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.

Is the square root of 4 plus the square root of 16 rational?

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.