Gary saves $2.50 each day. Which equation describes the relationship between the number of days (d) Gary saves money and the total amount of money (m), in dollars, that he saves?
A. m equals 2.50d
B. m equals d minus 2.50
C. d equals 2.50m
D. d equals 2.50 divided by m
PLEASE HELP I DONT UNDERSTAND IT AT ALL