Answer: Here are the evaluations of the expression 46 + (-2k) for the given values of k:
For k = 3: 46 + (-2 * 3) = 46 - 6 = 40
For k = 23: 46 + (-2 * 23) = 46 - 46 = 0
For k = -2: 46 + (-2 * -2) = 46 + 4 = 50
So, the evaluated expressions are 40, 0, and 50 respectively.
Explanation: