Hel! winston earns 20% commission as a salesperson. he sold a wooden toy chest that cost $69. How much commission did winston earn?

Need on this one asap im almost done with this subject

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?

Abcd is a square. what is the measure of angle bac