Answer: I got 0.5 gallons which is also 1/2
Step-by-step explanation: Total tress there is 10 i got this by doing total amount of sap i started with the equation 3* (1/4) + 2* (3/8) + 4* (5/8) + 1* (1)and i worked my way down from there. Anyways after working this all out you would get 0.5 gallons for each tree