I need immediate help !!

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?

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.