X-5=11-3x solve for x

How can we find the measure of an exterior angle if we know the measurement of an interior angle

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?

What is the slope of (0,32) and (100,212)