A bank account earns 6 percent interest compounded continuously.
At what (constant, continuous) rate must a parent deposit money
into such an account in order to save 200000 dollars
in 10 years for a child's college expenses?
rate = (dollars/year)

If the parent decides instead to deposit a lump sum now in order to
attain the goal of 200000 dollars in 10 years, how much must be deposited
now?
amount = (dollars)