Please help with that statistics question thank you!

On average a herd of elephants travels 10 miles in 12 hours you can use that information to answer different questions drag each expression to show which is answers

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?

Me i'm timed right now! a. (0,-5)b. (0,-3)c. (0,3) d. (0,5)