They have a total of w dollars to buy 5 tickets each ticket costs 15 dollars

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?