What is the probability that a customer ordered a large given that he or she ordered a cold drink

Which expression is equal to (f+g)(x)?

F(x)=3(1.54)^x whats this how do you do it

There are three values of k for which p(x) = x^3-2x^2-x+2 divided by (x-k) gives a remainder of zero. find the three values of k.