Final answer:
To determine the answer to question #15 without calculating, you can use mental math and the concept of scaling.
Step-by-step explanation:
To determine the answer to question #15 without calculating, you can use mental math and the concept of scaling. The problem states that the dimensions are doubled, so the larger square will have a side length that is twice the side length of the smaller square. Since the smaller square has a side length of 24 inches, the larger square will have a side length of 24x2=48 inches. Therefore, the answer to question #15 is 48.