One long distance telephone company charges a $4.95 monthly fee and then $0.05 per minute of phone use. How much will the long-distance bill be if you talk for 350 minutes during the month?

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