May is helping a friend, who has a tree farm,
sell Christmas trees. She began with two
hundred twenty trees to sell. After two days,
two hundred trees are left. Assume that the
trees sell at the same rate per day until they are
gone.
Define a unit for the time spent selling
trees. Enter a variable for the time spent
selling trees and use this variable to write
an expression for the number of trees left to
sell.
1. How many trees will be left to sell after ten
days?
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