Question

Pauline is the owner of a condominium unit that
she rents to a family. Every month, she receives
rent money of $1275 from the family. Pauline pays
for the utilities and a fee of $75 to the manager of
the condominiums. The net amount of money (rent
less utilities and condominium fee) that Pauline
has received from the family since the family
moved into the unit 6 months ago is summarized
by the following arithmetic sequence.