At a bake sale there were 90 items sold total. if 42 of the items sold were cookies and the rest were brownies what is the ratio of brownies sold to cookies sold?

What is the simplified expression for 6(2(y+x))

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

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?