In the number 76,129 which digit has the least value

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

I'm confused on this could anyone me and show me what i need to do to solve it.

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?