How do I write a compound ?Inequality for the graph

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?

Can someone pls ! pls answer all. no explanation needed..

If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle burns at 1/5 inch per hour after how many hours would both candles be the same height