Without solving, does the system of equations have one solution, no solution, or infinite solutions.

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.