Which equation represents a proportional relationship? A y=x+13y=x+\frac{1}{3}y=x+ 3 1 ​ B y=1−13xy=1-\frac{1}{3}xy=1− 3 1 ​ x C y=3x+13y=3x+\frac{1}{3}y=3x+ 3 1 ​ D y=13xy=\frac{1}{3}xy= 3 1 ​ x

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

Which of the following is not a subset of {1,2,3}?

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)