Please help!

The vertex of a parabola is (3,0) and a= -1. Which of the following functions represents the parabola?

A. y= -x^2 + 3
B. y= x^2 - x + 3
C. y= -x^2 + 6x -9
D. y= x^2 - 6x + 9

Hey bakery display easter cookies equally on seven trays if there are 567 cookies how many cookies are on each tray

Acharity is conducting a raffle, and it sells one ticket each to 35 women and 21 men. if 5 winners are randomly selected, what is the probability that they are all men? round to five decimal places. 0.00533 0.06268 0.09537 0.07776

What is the prime factorization of 195