To make the balloon bigger (hypertrophy), one can either add more water to the balloon, thereby stretching it to its maximum capacity (increase cell volume) or one could theoretically add more rubber (balloon material) to make the overall size of the balloon larger (increase in contractile protein).
The child and dependent care tax credit is a percentage of your day care expenses up to $3,000 for one dependent or $6,000 for two or more dependents. That's not the amount of your credit. It's the amount of day care expenses you can apply the percentage to.
Daycare owners may charge an amount of $18 per day for one child or up to $31 per day for one child. There are many other factors here as well. Ultimately if the daycare provider were to have an average monthly gross income it would be around $5000 to $9000 per month.