Witch of these is a correct expansion of (3x-1)(4x^2+5)

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

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth