In a language class, there are numerous students who multi-lingual. a) suppose that in a class. 50 students speak french, 35 students speak spanish, and 15 speak both french and spanish. if every student can speak at least french or spanish, how many students are in the class? b) suppose that in a class of 75 students, 50 students speak spanish and 15 can speak both spanish and french. if every student either speaks french or spanish, how many students can speak french? how many students can speak french but not spanish? c) in a class, there are 100 students who can speak only 1 language out of spanish, french, and chinese. there are 15 students who speak spanish and french only, 20 students who speak french and chinese only, and 15 students who speak chinese and spanish only. furthermore, there are 10 students who can speak all 3. if every student in class speaks at least one of the 3 languages above, how many students are present in class? hint: for problem (b) and (c), a good way to count the number of students would be to draw a venn diagram.