Answer:
80 packages
Step-by-step explanation:
0.0075*80= 0.6 5.5 + 0.6= 6.1
So first you do 3,816 divided by 12 , because you need to find how much for 1 so then you can find out 25% off of 1. To check your work put down 318 times 12 to prove that you're right. Which would be 318 times 25 = 79.5. If you use a calculator it won't have the decimals ( if you just do the numbers ), but the rest is above.
The first one would be (-5,5) and the second one is (5,5) or 1.
Check attached image file.