You can use the same amount of oil as mayo.
Yes it can.
Half a cup of butter.
Depends on what is in the cup...
half a cup of water and food
A cup is 8 oz., so half a cup is 4 oz.
You can typically replace half the amount of oil with applesauce in a recipe. For example, if a recipe calls for 1 cup of oil, you can use 1/2 cup of applesauce instead.
A half cup shortening is a half cup margarine. They are practically the same except in taste.
1 cup
Half a cup
I feed mine 1/3 of a cup and they are very healthy
2 and a half cups of grams equals 1 third of a cup
4 oz is half a cup.