I need help with these please anyone

When you flip a biased coin the probability of getting a tail is 0.6. how many times would you expect to get tails if you flip the coin 320 times?

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.

The function below is written in vertex form or intercept form. rewrite them in standard form and show your work. y = (x+4)(x+3)