I really need help There are 780 kids you have to feed and you need 52 pizza to feed them. And when u add up everything plus the fee its $1,459.47 I need to turn this all into an equation but i don't know how to soo please help me.

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?