Find the area of the circle. Use 3.14 for pi *
87.9
614.5
153.8
43.9

Don't know how to find x given these segment lengths

What is the difference between the equations of a vertical and a horizontal line?

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