All of the following expressions represent the sum of n and itself, except n + n 2n n2

What is the probability of rolling a single die greater than 4

Which expression is equivalent to the expression shown?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm