Use proportions or scale factors to determine the missing side length.

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

Find the domain and range of the following function f(x) = 51x - 21+ 4

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