Answer:
The answer will be $41.
Explanation:
The answer is 41 because Mike has $18 and his sister has $23 more dollars than him. More = addition. You will add the money Mike has and the amount more than his sister has. When you add it, the answer will turn out to be $41.
Hope that helps! If you somehow get it wrong, please tell me so I could look over my work!! Thanks and have a great rest of your day :) !