Chase and his brother want to improve their personal information for when they start applying to colleges of their choice. To accomplish this they decide to help the Salvation Army with delivering hot meals to senior citizens. About a month ago, they decided to keep track of how many successful deliveries they have each completed. As of today, Chase has successfully delivered 18 out of the 30 meals to senior citizens. Part A
How many more meals would Chase have to deliver in a row in order to have a 75% successful delivery record? Justify your answer.

Part B
How many more meals would Chase have to deliver in a row in order to have a 90% successful delivery record? Justify your answer.

Part C
After successfully delivering 18 out of 30 meals would Chase ever be able to reach a 100% successful delivery record? Explain why or why not.