Me identify the common difference and then find the next three terms of the following sequence of 5/6, 2/3, 1/2, 1/3

For the equations below which statement is true ?

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

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42