If a1=10 and an=-4an-1 then find the value of a4

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.

How many solutions does the nonlinear system of equations graphed bellow have?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41