Determine the degree of each vertex and the sum of degrees in the following graphs
(a) d(U) =
(b) d(V) =
(c) d(W) =
(d) d(X) =
(e) d(Y) =
(f) d(Z) =
Ed(v) =

The mathematical expression 9€ t means

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Just tell me how to set up the equation.