Find solutions to your questions with the help of IDNLearn.com's expert community. Discover detailed and accurate answers to your questions from our knowledgeable and dedicated community members.
Answer:
A = What they charge for a cup of lemonade
a = Total of what they charge for a cup of lemonade
B = What a cup of lemonade costs
b = Total of lemonade costs
C = Profit
A+A+A+A.....= a
B+B+B+B.....= b
a - b = C