Q 1) A plane traveled 900 miles to Tokyo and back. The trip there was with the wind. It took 6 hours. The trip back was into the wind. The trip back took 10 hours. What was the speed of the wind?
Q 2)

The school that Danielle goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 adult tickets and 7 student tickets for a total of $133. The school took in $87 on the second day by selling 6 adult tickets and 3 student tickets. What was the price of one student ticket?

Q 3)

Carlos' school is selling tickets to the annual dance competition. On the first day of ticket sales the school sold 8 senior citizen tickets and 2 student tickets for a total of $86. The school took in $101 on the second day by selling 3 senior citizen tickets and 7 student tickets. What was the price of one senior citizen ticket?

PLS PLS PLS HELP