Size (oz) Price ($)
Regular
16
3.36
Family Size
40
7.60

10. Mason’s favorite brand of peanut butter is available in two sizes. Each size and its price are shown in the table.
a. What is the unit rate for each size of peanut butter? Regular: $ per ounce Family Size $ per ounce Which is the better buy?

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