A cellar contains only bottles of port, claret, sherry and brandy. Of these, 1/5 of the bottles are port and 1/5 are claret. The cellar also contains 15 dozen bottles of sherry and 30 bottles of brandy. How many bottles of port and claret does it contain?

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas 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