I know this is a site to ask questions but uh Who wants to be friends on disc? I'm Kasperismn#6969 :)

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

What is the solution of the equation? 35√(x+2)3+3=27