Vince weighs 160 pounds, and his friend nadir weighs 140 pounds. nadir calculated that his weight on another planet would be about 56 lb. approximately what would vince weigh on the other planet?

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of