Answer:
B. -7.25
Explanation:
On a number line, if there is one bar between 1 and 2, that bar is 1.5. If there are 3 bars between 1 and 2, the three bars from left to right are 1.25, 1.5, and 1.75. Using this knowledge, your answer would be -7.25. A picture is attached for further clarity.