Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

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

Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?