The first two angles in a triangle are 15 degrees and 20 degrees. What does the third angle have to be? A. 15 degrees
B. 25 degrees
C. 105 degrees
D. 145 degrees

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?