PLEASE HELP IM BEING TIMED AND DONT GET IT

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

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