A because if he started at negative ten you would add the 10 he increased. When you add those two together you get 0.
-10+10=0
The volume for 3 boxes of detergent is 864 inches
Volume= length X width X hight
V=12X8X3
V=288
V=864 (288 times 3 for 3 boxes)
This budget might be a problem because Mike is using the minimum recommended percentages for food, housing, and transportation. He prepared the biggest sum for entertainment, putting the basic needs under the disadvantage and forgetting about medical emergencies. Therefore, in the end of month there is a strong possibility that he will find out he organized his budget in a wrong way.