Given segment ab is parallel to segment cd, angle b is ≅ angle d and segment bf ≅ segment ed. prove triangle abf ≅ triangle ced o. o/ one moment i am drawing the diagram.

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