Is that the whole equation? Exactly from the book or paper?
Hey there!
The answer would be B. y = 1.25x
If each pound is $1.25 and you get 4 pounds then that would equal to $5.00 or y.
Hope this helps !
Add it all up, the answer would be B. 2.37
1. 7 17/42
2. 42 5/6
3. 7 3/4
4. 12 2/3
5. 2 8/35