HELP PLEASE PLEASE PLEASE

Can someone check if i did this correct. it’s number 4 if you’re wondering.

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

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?