Molly is painting her bedroom walls, and the paint costs $24 per gallon. How much does the paint cost per quart? $3 per quart
$6 per quart
$48 per quart
$96 per quart

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