Ms. burnett had 144 pencils last week .she gave away 12 pencils monday, 16 on tuesday,20 on wednesday ,10 on thursday, and friday, 28 of the students gave her a new pencil. how many pencils does ms. burnett now have?

If this is a trick question, then the answer would be 172, because the students can return the pencils. If it is a regular problem then it would be 114 pencils.

b

step-by-step explanation:

the word superfluous means unnecessary

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.