+57 So 4% of 800 would be 32 and 32*20 is 640 so she lost that many pounds out of her profits. She earned 1600 in total from selling everything so 1600-640=960 that she gets to donate. 65% of 960 is 624 that would go to charity A so whatever is left after she donates 624 pounds from 960 pounds would be how much money she raised for charity B i think.
