PLEASE HELP 20 really easy counting atoms questions 50 points ! please don't answer if you don't know how to do these and will mark brainliest !

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.