Cari German uses gas to heat her home. She has accumulated the following information regarding her monthly gas bill and monthly heating degree-days. The heating degree-days value for a month is found by first subtracting the average temperature for each day from 65 degrees and then summing these daily amounts together for the month.
Month Heating Degree-Days Gas Bill
February 1,900 $254
April 600 $101
What will be the increase in Cari's monthly gas bill per heating degree-day using the high-low method?
$0.3309
$0.1177
$46.00
$153.00