The perimeter of this shape is 30 feet. what is the length of the missing side

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

What is the solution to the equation in the & show work i’m very