At a age of 4 months a puppy's weight is 257% of its weight at the age of 2 months. how many times heavier is the puppy at 4 months than at 2 months? write your answer as a mixed number in simplest form.

Idon't want to fail summer school.the probabilities of contamination in medicine capsules due to the presence of heavy metals and different types of microbes are given in the table.the probability of capsule b having microbial contamination is (the same as, greater than, less than) the probability of capsule d having it.