Carla is wrapping a present in the box shown. how much wrapping paper does she need, not including overlap?

There's no attachment shown. But the technique here is just simple.
You should get the surface area of the box. After getting the surface area of the box, get also the total area of the wrapping paper.
Make sure the total area of the wrapping paper should be equal to the surface area of the box.

I’d say letter a..