6. Express the rational number as a fraction of integers. 5.93939393 . 7. Savings Account The table below shows the December balance in a simple interest savings account each year from 1996 to 2000. Year 1996 1997 1998 1999 2000 Balance $18,000 $20,016 $22,032 $24,048 $26,064 (a) The balances form an arithmetic sequence. What is d? (b) Write a formula for the balance in the account n years after December 1996. (e) Find the sum of the December balances from 1996 to 2006, inclusive