<span>In adding, subtracting, multiplying and
dividing numbers, always remember this rule: PMDAS (or parenthesis, multiply,
divide, add, subtract). The P in PMDAS must come first. We must use an order of
operations. In the problem given, (18 + 23) + 7, they must be added. However you have a
parenthesis that has the numbers 18 and 23. You will add 18 and 23 first and then you will get 41. And so the answer is 41 + 7,
letter B. </span>
