There are 4 9's in a deck.
The probability would be 4 / 52 = 0.07692
Rounded to the nearest hundredth = 0.08
10/15 =6/9
6*15=90
90/9=10, this is how I found 10,
also, is you simplify both, you get 2/3
Thats simple there are 52 weeks in a year, so 1109 x 52= 57,668
In 8 years you will be twice as old as your brother.
Right now, your brother is 4 years old, and 4 x 4 is 16, so you are 16.
In two years, your brother would be 6, and you would be 18, making you 3 times as old.
So, in 8 years, your brother will be 12 years old, making you 24. 12 is half of 24.