Dave works as a waiter. he is calculating his average tips from the past two weeks. his total tips from each night can be found in the table below, with all values being in dollars. day sun mon tue wed thu fri sat week 1 100.85 166.57 135.74 148.12 113.94 190.13 235.31 week 2 102.57 124.02 142.40 108.60 110.50 163.82 183.01 find the mean of dave’s nightly tips. round to the nearest cent, if necessary. a. $168.08 b. $144.68 c. $139.07 d. $133.56