0.85, 8/9, 0.92. All you have to do is convert 8/9 into a decimal.
If the coins are selected without replacement, the probability of 2 dimes is:

The answer is 5/14.
Using the formula for a hypergeometric distribution, we get:
I believe the answer is 11/15 .
Use the Pythagorean Theorem.

What do you think the answer is?