Find the solution(s) to the system of equations represented in the graph.

linear graph and circle. they intersect at negative 3, 0 and 0, 3

(0, 3) and (3, 0)
(0, 3) and (−3, 0)
(0, −3) and (3, 0)
(0, −3) and (−3, 0)

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