Ineed the volume but i forgot formula

Volume - 1/3 base area x height

Base area = 8 x 6 = 48 ft²

Volume = 1/3 x 48 x 10 = 160 ft³

  160 ft³

2.52 pounds + 1.26 pounds = 3.78 pounds of salad ÷ 18 people = .21 pounds of salad per person

you add the pounds because that is everything she used to make the salad. then you divide by 18 because there are 18 people eating the salad and everyone gets exactly the same amount. Hope this helps :) this should help if you have more questions like this :)
(x pounds + y pounds = total pounds, total pounds ÷ # of people = pounds per person)