2. Which statement is true? A. The pair of equations y = 6 and y = 3x + 6 has no solution.

B. The pair of equations x + y = 1 and -x - y = -1 has the solution (0, 0)

C. The pair of equations 2x + 2y = 4 and x + y = 2 has no solution.

D. The pair of equations 7y = 14x and y = 2x has infinitely many solutions.

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

Which number line correctly shows 0.8 + 0.3?