The formula to convert °f to °c is c = 5/9 (f – 32). 50°c = 122 °f why do you multiply 50 by the reciprocal of 5/9

Me because some of question i don’t understand

This is about circle theorems. someone asap : (

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?