it's d.
step-by-step explanation:
because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.
then you would get: -4x - 1y + 2x -6y combine like terms
and get: 2x -7y
hope my answer has you if not then i'm sorry.
answer: a. one is a factor of every whole number since every number is divisible by itself.
#15. square
because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that you know what i meanz)
hope this halps!
bai!
so far i think you have the right thing going for you just remember soh cah toh
sine over hypotenuse
cosine equals adjacent
tangent over hypotenuse