Find the number of possibilities in each scenario. A group of 16 people need to take an elevator to the top floor. They will go in groups of eight. They are deciding who will take the elevator on its second trip.

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?