Arecipe for trail mix requires 2 parts mixed nuts, 3 parts raisins, and 4 parts granola by weight. chiwa has 42 ounces of mixed nuts, 80 ounces of raisins, and 100 ounces of granola. how many ounces of trail mix can she make? how many ounces of raisins will she need.

Use 40 ounces of nuts, 60 ounces of raisins, 80 ounces granola. 40+60+80=180 ounces of trail mix. 

Manuel bought pounds of apples and eat 3/4 of 1 pound
That is 0.75 pounds
Thus 9-0.75=8.25 pounds of apples left with him.
It is given that the cost of 25 pounds of Apple is dollar.
Let the cost of 1 pound of Apple be x.

8.25 multiply X=15

8.25x. 10
————. = ——
8.25. 8.25

X=10
——
8.25

X=1.818181

X=2

Then the cost of Apple is above two dollars per pound