Answer:
36 loaves of bread and 18.48 ounces of mayonnaise are needed to make all of the sandwiches.
Explanation:
Number of slices of ham = 231
Given that each sandwich has 1 slice of ham.
Then 231 slices of ham will be in :

A single sandwich is made up of 2 bread slices , Then bread slices in 231 sandwiches will be :

Each bread slice is applied with 0.0500 ounce of mayonnaise.
Then 462 bread slices will have :

1 bread loaf = 13 bread slices
Then breads loves in 462 bread slices :

36 loaves of bread and 18.48 ounces of mayonnaise are needed to make all of the sandwiches.
Answer: Cornea
Explanation: The cornea is the only part of a human body that has no blood supply as it gets oxygen directly through the air.
Cholesterol is an example of a lipid.
Answer:If each side of the equation has the same number of atoms of a given element, that element is balanced. If all elements are balanced, the equation is balanced. - online resource
Explanation: if not im sorry
I believe it is C; reasoning being that the hint for physical change is," the producing of a gas," chemical "that's new and diff. substance. "