Honestly I’m bad at math what is the following product

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

In which form is the following function written? y = - 2(x – 3)(x + 5)

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?