Write an equation in slope-intercept form for the line that passes through the given point and is parallel to the given line.
(-7,3); x=4
someone plz

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