5 lbs. of organic red potatoes cost
$6.00. What is the price per lb?

Sum is 17 and their difference is 3

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

Interpret the following expression (5y^2-7)^3/(2y)^2