Karen bakes cookies. she has observed that the number of cookies m that turn out well in each batch varies with the size of the batch and is given by the function f(x)= 2x-23 where c is the size of the batch (number of cookies in each batch). she never bakes fewer than 12 cookies in a batch. if the size of 5 batches is {20,25,26,27,34}, how many cookies turn out well in each batch?