Looks like a derivative but i'm confused on how to simplify it

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2

Find the value of x. give reasons to justify your solutions! c ∈ ae

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.