Can someone help me I have two more other questions they are 15 points each I just posted them right now! Thanks so much

Which of the following is the correct ratio for converting kilograms to grams

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?

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.