Please solve this 2 questions in 40 minutes please

2. A YES-NO weighted voting system has four members, with weights 1, 1, 2, 3, and quota 4. Compute the Banzhaf index of each member. 3. Suppose a committee has 9 voters. A resolution is passed by majority vote (.e., 5 votes are needed), but one of the voters also has the power to veto (so there is one "special voter"). What is the Banzhaf index of this voter