Question

Turn the base 2 number 1111 into base 10

Answer 1

7

Explanation:

`111 \\ {1}^(2) {1}^(1) {1}^(0) \\ 1 * {2}^(2) + 1 * {2}^(1) + 1 * {2}^(0) \\ 4 + 2 + 1 \\ = 7`