Since you have 3 bags, you should first take 3×125.3 (you get 375.9) because one bag covers 125.3 and you have 3 bags. Then to find how much 3/4 of a bag covers take 125.3÷4 (you get 31.325) to see how much a fourth of the bag would cover, then take that number and times it by three (you get 93.975) then to get the total you do 93.975+375.9 and get 469.875, so the answer is A.
