determine the degree, leading coefficient and end behavior(no graphing) for each polynomial f(x)= -x^9

There is a spinner with 14 equal areas, numbered 1 through 14. if the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Anita has a success rate of 80% on free throws in basketball. she wants to know the estimated probability that she can make exactly four of five free throws in her next game. how can she simulate this scenario? categorize each simulation of this scenario as correct or incorrect.