Hanna is making goodie bags for a party and he puts in 1 lollipops for every 7 gumdrops if hanna uses 9 lollipop how many gum drops did she use and how many candys did she use all together

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