A factory produced toy cars at a rate of 400 cars per hour. If 12 cars are defective each hour, what percent of the toys are defective?

When you answer this can you explain

Put the equation in slope intercept form by solving for y

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?