Can someone help me asap​

Can (2,3 and square root 10) be sides ona right triangle?

Which of the following are parts of a sphere

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online