Answer:
1). Option A is the equation which models the situation.
2). 9 loaves of the bread will be required.
Explanation:
Sam used 6 loaves of elf bread on an 8 days hiking trip.
So the ratio of loves of bread to number of day will be =

Now this ratio will be equal to the ratio of b loves of bread to the 12 number of days =

Therefore, The proportion that models this situation will be

Option A is the correct equation.
Now we have to solve this equation for 12 days trip.

b =

b =

b = 9 loaves of bread