Rewrite rational with new denominator as indicated 3\16 ; 64

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Can any one me with the answers to these questions asap?

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude