A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 1 | 2 | 3 | 4 | 5 |
A poker hand with 4 cards of the same rank. Example is 4 Aces, 4 Queens, 4 sixes4 unknowns
A set of 4 equations with 4 unknown variables.401(k) balance
The balance in an investment vehicle known as the 401(k) - a retirement savings plan sponsored by an employer