Answer:
165 Calories
Step-by-step explanation:
A gram of carbohydrate contains 4 calories. A gram of protein also contains 4 calories. A gram of fat, though, contains 9 calories
5x9=45 10x4=40 20x4=80 45+40+80= 165
56 different sub-committees are possible
Step-by-step explanation:
When the selection has to be made without order, combinations are used.
The formula for combination is:

Here,
Total members = n = 8
Members to be selected = r = 5
So,

Hence,
56 different sub-committees are possible
Keywords: Combinations, Selection
Learn more about combinations at:
#LearnwithBrainly
It’s less than a positive number
The answer is A. 2, -2
Hope I helped!
Let me know if you need anything else!
~ Zoe