Find the Number of Positive Integers $\leq 1000 \text { that are multiples of at least one of } 3,5,11 \text {. }$

Q88: How many permutations of all 26 letters

Q89: determine whether the recurrence relation is

Q90: find the coefficient of x8 in

Q91: find the coefficient of x8 in

Q92: Use generating functions to solve

Q94: If G(x) is the generating function for

Q95: find the coefficient of x8 in

Q96: Set up a generating function and use

Q97: describe each sequence recursively. Include initial conditions

Q98: If G(x) is the generating function for