Can someone please help me out with this I give you thanks if its correct

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

Can someone me with this? i’m not sure what to put for my equations.