Which of the following answers is correct a. b. c. or d.

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.

Prove that 16^4-2^13-4^5 is divisible by 11.

Which of the following represents a function? 50 !