This image should help with that.
Mary bought 10 notebooks that each cost the same amount. She paid with a $100 bill and receive $13 dollars in change a. Write an
2 answers:
You might be interested in
Answer:
Step By Step Explanation:
Goal: Write an equation that can be used to find her balance after 't' years
Deposit: $3,000
Interest: 4.2%
Turn 4.2% Into Decimal
Decimal: 0.42
't': 't' is undefined, so 't' stays the same
Balance = B
Balance = 3,000 Multiplied By 1 + 0.42. That is then multiplied by itself 't' times