Find the terminal point on the unit circle determined by 5pi/4 radians

The number of possible solutions of a polynomial can be found by looking

Leo is going to use a random number generator 4 0 0 400 times. each time he uses it, he will get a 1 , 2 , 3 , 4 , 1,2,3,4, or 5 5. what is the best prediction for the number of times that leo will get an odd number?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80