Please answer! Which systems of equations would have no solution?

A. X + y = 4 and y = -x+4

B. Y= 3x + 2 and y= 3x - 2

C. 2x + y = 10 and y= -2x + 10

D. 3x + y = 8 and 3x + y = 9

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Factor the polynomial by its greatest common monomial factor.