Question

Which expressions are equal to k? 0×k×1, 1×k+0,4×0+k, k+1

Answer 1

Explanation:

0×k×1 = 0 (0×... is always 0). wrong

1×k + 0 = k + 0 = k correct

4×0 + k = 0 + k = k correct

k + 1 = k + 1 (and not k) wrong