Jeff received a gift card worth $50 and plans to use it to download music and movies. Each song down-
load costs $1.25 and each movie costs $3. If Jeff
downloads 4 songs and 1 movie each month, which
of the following indicates the number of dollars, d,
left on Jeff's gift card after m months?
A) d=53-5m
B) d=50 - 2m
C) d=50 - 8m
D) d=45-3m