, sorry but the right answer is 3.4

Thank you very much!

from this equation, you can get x = x, and then 0 = 0, which means that x can be everything.

The probability for the first marble to be green: 3/2+3+3 = 3/8

The probability for the first marble to be blue: 3/2+2+3 = 3/7

Answer: 3/8*3/7= 9/56

the equation will be 200,000*1.0825^{x} = 500,000, and x is about 11.6, so the answer is 12

divide both sides by -0.9, and this gives you 2.7/-0.9 = -0.9y/-0.9, and y = -3

25*1/5=5

the answer is too big, so a regular calculator can't solve it