From a list of 48 captains, 4 are to be promoted to major. In how many ways can this be done?    ___ ways

A committee of 6 U.S. senators is to be formed with 3 Democrats and 3 Republicans. In how many ways can this be done if there are 34 Democratic senators and 66 Republican senators?  __ ways

There are 58runners in a race. How many ways can the runners finish​ first, second, and​ third? How many different ways can the runners finish first through third? ​(Type a whole​ number.)

A standard-issue 2020 New Jersey license plate had one letter, then two digits, followed by three letters. New Jersey DOO SPA Garden State These plates were not allowed to have letters D, T, or X in the fourth position, or the letters I, O, or Q in any position. With these restrictions, how many different license plates were possible in 2020?