Help pls! Thnx!

The value √10 and √15 are plotted on the number line

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

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.!