How much is in the piggy bank? Suppose you are a student council member and your group has decided to have a feeding program for street children as part of your outreach work. The student’s council members agreed to save up for this project by depositing twenty--, fifty--, or one hundred-peso bills into a piggy bank. One day, the student council members decided to figure out, without breaking the piggy bank, what the possible denominations in the piggy bank are saved till now. All that is known is that there are 10 bills in the piggy bank. Using your knowledge in counting techniques discussed in class, write a list of all possible denomination in the piggy bank. How many possible are there? (Note: it is possible that no twenty-peso bills or any two)