I think those would be the right answers to your questions.
My reasoning:
- PPE is used in healthcare to protect people from diseases
- Mask is an example of PPE
- I'm not completely sure about the last question but I said it's true since question one said that PPE helps protect people from airborne and bloodborne disease.
In a 1,800 calories a day diet just like what Bob should
have, it will be an equivalent of 203 – 293 grams of carbohydrates daily. Assume that we will have the maximum intake,
which is 293 grams; we just need to get the 45 – 65 % of it. So it will be 190.45 grams per day.