20: 1,2,4,5,10,20
28: 1,2,4,7,14,28
X-13=42
x is the "variable", you're taking 13 away from that, and the answer is also given, 42.
Answer:
1800 dollars
Step-by-step explanation:
We can set up an equation here to represent the exponential growth in Terry's bank account.

We can plug in 3 for x since x is the # of years the account is receiving compound interest on.

