Do all numbers have a prime factorization

Reflect the point (7,0) across the y-axis

Acircle has a circumference of 28.36 units what is the diameter of the circle

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