There are 9 blue, 21 red, 15 yellow, and 5 green marbles in a bag. What is the probability of choosing a blue, then a green? P(blue, green) =

I need help

Adriano loves anime and collects toys from his favorite series. each month he gains 4 toys. if adriano has 3 toys when he starts collecting, how many does he have after 4 months

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)