Bradley had 25 baseball cards in his collection. He receives x number of baseball cards for his birthday.

What dimensions can créate more than one triangle ?

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?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.