I am currently applying to an aviation high school at the moment (I am going to be a sophmore in high school). My age is 15

How old do you have to be to fly solo and recieve your certificate?

I read that it usually takes 75 hours for someone to get their license. Also, it said that the costs are usually around $5000-6000.

Are these accurate estimates? Is it possible to get your certificate and spending less than $5000?

Cheers,
Roman