I do not understand this one.

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Use the distributive law to multiply. 3(4x + 5y + 6)

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