If the dimensions of a rectangular prism are 39 mm × 12 mm × 15 mm, then what is the surface area

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

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab