Moussa Sangare is purchasing a used car and has the option of two possible paymentplans:
Plan A: $2000 down, $2000 after 1 year, and $2000 after 2 years.
Plan B: $1000 down, $4150 after 1 year, and $845 after 2 years.
Determine the range of interest rates for which Plan B is better for Moussa.