Answer: the answer is D
Step-by-step explanation: 1/4 inch is equal to 1.5 feet, 1/4 is also equal to 0.25. Therefore, I divided 3.25 by 0.25 to get 13. Next, I did 1.5 x 13 to get 19.5. I attempted to check my answer by checking that if I divide both 19.5 and 3.25 by 0.25, I get the original values in the key box. Therefore the answer is D.