Assume you use mergesort to find the median of 15 elements (i. E. N = 15), but stop as soon as you know the median. Exactly how many comparisons do you use (in the worst case)?.

Usan threw a softball 42 yards on her first try and 5112 yards on her second try. how much farther did she throw the softball on her second try than her first? express your answer in feet and inches. 9 ft 12 in. 28 ft 12 in. 28 ft 6 in.