The following is an arithmetic sequence 1,2.5,4,5.5 true or false

Which fraction below is equivalent to 10/12?

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

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?