Cual es la respuesta?

Which system of linear inequalities is represented by the graph?

Is the point (0, 8) on the x-axis or y-axis? how do you know?

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