Write an inequality that models a real-world situation

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

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

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?