Three roommates Tinker, Evers, and Chance share an apartment. It is really cold outside and they are considering turning up the thermostat in the apartment up by 1, 2, 3, or 4 degrees. Their individual marginal benefits from making it warmer in the apartment are as follows:

They know that each time they raise the temperature by one degree; their heating bill goes up by $8.
a. Find the marginal social benefit from making it 1, 2, 3, or 4 degrees warmer.
b. By how many degrees should they raise the temperature?

1 degree 2 degrees 3 degrees 4 degrees Tinker S5 S4 S3 S2 EverS S4 S3 S2 S1 Chance S3 S2 $1 SO