In a randomly generated list of numbers from 0 to 8, what is the chance that each number will occur?

Me. i can't figure out this question. give an explanation too. .

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =