Can someone please check my answer?

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?

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)