Suppose that for next Saturday night you are on the waiting-list at two restaurants, Tres Chic, and the PeptoB Palace. The probability Tres Chic will have an opening and be able to seat you then is 0.25, and the probability of PeptoB will be able to seat you then is 0.80. Assuming that the possibility of being seated at the two restaurants are independent of each other, what is the probability that
a. both restaurants will be able to seat you next Saturday night?
b. that at least one restaurant will be able to seat you next Saturday night?
c. neither of the two restaurants will be able to seat you next Saturday night
d. Tres Chic will be able to seat you, but PeptoB won't?