Serafina needs to purchase AT LEAST 60 party decorations. The Party Palace charges $0.50 per decorative streamer and $0.25 per balloon, including tax. Which combination of streamers and balloons can Serafina purchase with $20.00 at the Party Palace?
a) 20 streamers and 41 balloons
b) 36 streamers and 24 balloons
c) 21 streamers and 38 balloons
d) 18 streamers and 43 balloons
