Please help guys
usa test prep. and i hope u are haveing a good day/night :3

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

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 choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y