bank started a new savings account on October 10,2011, using the
accumulation function a(t) = mt^2 + n, where t is measured in
years. An investment of 550 made on October 10,2011 is worth 726 on
a) How much interest will be earned durinh the 7th year on an
investment of 1200 made on October 10,2011?
b) Find the effective rate of interest durinh the fourth year
from October 10, 2011.
c) Find the effective rate of discount during the third year
October 10, 2011.