how can I use manipulative and nets to help compute the surface areas of rectangular and triangular prisms and pyramids​

For example, if the length of one side of the cube 4 units then the area of one its face is 4 × 4 = 16 square units.

From the net, we can see that there are six equal faces and so we get the total surface area is 6 × 16 = 96 square units.

Hope this helped at all, if you could copy and paste what I put as your answer.

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system