There are 12 people in a tournament. Each player must play against every other player. How many games will be played?

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

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