Wow this question is very difficult,hold up
Answer:
first one = 15x+30y-220
second one = 2.4x-4.4
Step-by-step explanation:
Antagonist - a character or group of characters which stand is opposition to the protagonist or the main character
The formula required is:

where A is the amount after t years of the principal P invested at an annual interest rate r (expressed as a decimal fraction) compounded n times per year.
Plugging in the given values, we get:

The final amount is $22,096.17