Jo is 5cm taller than Kathy. Let j=jo height. Then? =kathys height.

What is the value of x when x + 7 = 21?

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

What rotation was applied to triangle def to create d’e’f’?