Remember these things

Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles

Solve the system of equations y= 3/2 - 1, -x+ y =-3

What is the factored form of the following expressions? d^2 – 13d + 36