Answer: A; 25 + m = 50; m = 25 minutes
Explanation:
Ashton has a TOTAL of 50 minutes to complete the exam. We can not eliminate any of the answers. He SPENT 25 minutes on the first half of the exam. We can eliminate A and D because they are not subtraction. SPENT means subtract. We can also eliminate B because 75 minutes is much greater than 50 minutes and he has a total of 50 minutes only. Therefore, the only possible answer is A.
The answer is A; 25 + m = 50; m = 25 minutes