To feed hid plants ,logan creates A mixture that require 3/8 cup of plant food for every gallon of water . if he uses 10 1/2 gallons of water ,what is the total amount of plant food he needs? options-a. 3 15/16 b. 6 310 c. 10 3/16 d. 10 7/8 plz explain how u got ur answer and break it down