I really need help this is due in 10 minutes. Please don’t give me any links I am really struggling.

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Travis and paula went to lunch.travis ordered a sandwich for $7.50 and paula ordered a burger for $5.25.after lunch,they left a 15% tip for the waiter.how many money did they spend altogether?

Quickly multiply and simplify polynomials (x – 4) (x^2 – 5x – 6)