A report by the Government Accountability Office (GAO) shows that the GAO expects the

U.S. Postal Service to lose a record $7 billion at
the end of this year, and if the business model is
not changed, the losses will total $241 billion by
the end of year 10. If the losses increase uniformly over the 10-year period, determine the
following:
(a) The expected increase in losses each year
(b) The loss 5 years from now
(c) The equivalent uniform worth of the losses at
an interest rate of 8% per year

(a) (241-7)/10 = ____

(b) 7 + 5*(a)
(c) not sure -- I guess you have a formula for that