Geometry need to find the lengths of DE , EF AND DF , respectively? ASAP

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

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?

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?