I have no clue how to answer this question

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

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?

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°