What is the slope of the line that passes through the points (-10, –4) and (10, -29)? Write your answer in simplest form. Submit Answer undefined attempt i out of

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