Answer:
For B. it's going to be 3 and 3/4 cups of water.
Step-by-step explanation:
1st you need to multiply 3/4 and 5. 18 can't be divided by 4 to get a whole number, so the closest you can get is if you divide 20 and 4. Then you would get 5. So, what I got the 20, because I rounded up to the nearest number that 4 can be divided by. Use a calculator. It will help you a lot! and it doesn't need to be a fancy one either. It can be the standard (or simple) calculator.