Mike is 4 years older than ron. in two years, the sum of their ages will be 84. how old are they now?

Which function has the domain x> -11?

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

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6