Answer:
6
Step-by-step explanation:

-0.272727272727272727272727272727
The answer is A. -2+5i.
First you set up the problem like this: (6+2i)-(8-3i)
Then you distribute the (-) into the second parenthesis. After doing that you should have something that looks like this: 6+2i-8+3i
Then you add like terms.
He used 7 pints all together because there at 2 cups in each pint and 4 pints in a half a gallon.