If you have an 80 average so far in class after 3 tests what would you need to get on the fourth test to have an average of 83?

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Atemperature of 1.64◦f corresponds to answer in units of ◦c.