Count the possible combinations of 2 letters chosen from L, M, N, O.
The possible combinations of 2 letters are

What is the missing step in this proof ?

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.

Gables properties corp. is leasing office building with an area of 49b^2+70b+25. what is the shape of the building? a) rectangle b) square