An oil exploration company drills for oil in a new territory. The probability of finding oil per drill is 0.70. Assuming statistically independent drills, compute the following: (1) the probability of finding oil in one well based on five wells, (2) the probability of finding oil in at least two wells based on five wells, (3) the number of wells necessary to find oil in at least three wells with a probability of 0.99 in order to meet a target return on investment.