I'll help you find A', B', and C' and let you finish the rest. Repost if you need more help.



To find A', simply list all of the elements of U that are NOT in A. In other words, you're listing elements that are NOT in A. So


*[Tex \LARGE A'=\left\{m, n, r, u, v, w\right\}]



Likewise, to find B', list the elements of U that are NOT in B. This means..


*[Tex \LARGE B'=\left\{l, m, p, q, t, u\right\}] 



Finally, form a set of elements from U but NOT from C:


*[Tex \LARGE C'=\left\{o, p, s, u, v, w\right\}] 




Now all you need to do is find *[Tex \LARGE A' \cup C'] (just combine sets A' and C') and *[Tex \LARGE \left(A' \cup C'\right) \cap B'] (take the last set and intersect it with set B')