It is known that the waiting time for a patient in a doctor's office is exponentially distributed with an average wait time
of 30 minutes. Given that it has already taken 31 minutes,
what is the probability that the wait time will be more than
an additional 35 minutes? (Round your answer to three
decimal places if necessary.)

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.

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Pleas its really urgent and i would really appreciate it! what is the value of x? enter your answer in the box. x =