Acoin bank that accepts only nickels and dimes contains $9.15. there are 3 more than twice as many nickels there are dimes. how many of each coin are in the bank.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.