The amount of oil used in four different recipes is shown in the table.
recipe
bread
cookies
cake
pie
oil
2/8 cup
1/3 cup
1/5 cup
1/7 cup
which recipe uses the most oil?
bread
cookies
cake
pie

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