A homeowner is interested in conserving energy and money by changing their heating and cooling habits in their home. Their monthly bill for heating their home is approximately $200 in the winter months. By setting their thermostat one degree lower, the
homeowner can save 5% of their energy bill in the winter. Calculate how much the homeowner will save in one winter month is they
set the thermostat to three degrees lower than normal.

A)
$10
B)
$20
C)
$30
D)
$5