I don't think anyone can solve this without seeing the table mentioned in the question :)
Answer:
6. I know that Christine hiked the Evergeen trail twice and the Yellow River trail once. I also know that Brian hiked the three longest trails once. I am asked to find how many more miles did Brian hike than Christine. I do not need to know that the family is staying at the state park for a week.
7. I need to find out how many miles Christine hiked and how many miles Brian hiked.
8. C = Christine's total
B = Brian's total
(4 3/4 x 2) + 5 1/4 = C
6 + 5 1/4 + 4 3/4 = B
9. (4 3/4 x 2) + 5 1/4
(19/4 x 2) + 5 1/4
19/2 + 5 1/4
9 1/2 + 5 1/4
C = 14 3/4
6 + 5 1/4 + 4 3/4
5 4/4 + 5 1/4 + 4 3/4
<u> </u>B = 16
<u> </u>16 - 14 3/4 <u>= 5 1/2</u>
10. It makes sense because Brian three of the longest trails while Christine didn't
<u></u>
;
or p = -6