Find x in the equation?

Which of the following are accepted without proof in a logical system? check all that apply.

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons