How to put the 5/10 in the simplest form

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

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

What is the measure of angle 1? a.28 b.152 c.168 d.64