Can you guys show me what buttons do i press for 3/4 + 1/6 on a ti-84 calculator?

()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

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

Collin did the work to see if 10 is a solution to the equation r/4=2.4