Prove that for all integral values of n, n^2 - n + 17 is odd and ends in one of the digits 3, 7, or 9.

450 liters

Step-by-step explanation:

It is given that the orchard produces 3000 pounds of oil in a year

Again, we're told that 20 pounds of olives makes 3 liters of oil

Then we're asked to find how many liters of oil the orchard can produce in a year.

If 3000 pounds of olives gets produced in a year

If 20 pounds of olives makes 3 liters of oil, then 3000 pounds of olives will make

3000 / 20 * 3 liters of oil

150 * 3 liters of oil

450 liters of oil

Essentially, the 3000 pounds of olive that the orchard produces in a year will produce a total of 450 liters of oil in a year also