Answer:

Step-by-step explanation:
GIVEN: A bank is offering you an introductory credit card promotion. Your interest for the first year is
. But, at the beginning of the
nd year your interest rate will go up to
. If you have an
balance on your card throughout both years.
TO FIND: difference in the monthly interest owed during year
and year
.
SOLUTION:
rate of interest for first year 
total amount on card 
interest earned in first year 


monthly interest owed 
rate of interest for first year 
total amount on card 
interest earned in first year 


monthly interest owed 
Difference in monthly interest owed during year
and year
