These two screenshots both have the information you can use for the answer. The first screenshot is the chart and the second is the question.


Step-by-step explanation:
Let h be the number of hours spent
Let d be the distance travelled
given d = 1.5 when h = 1, and d = 3 when h = 2,
d = 1.5h
given h = 7,
[tex]d = 1.5 \times 7 \\ = 10.5miles[/tex]