She can only buy 3 which is 13.25x3=39.75 if you do times 4 than it will be 54 which is not enough
19 guests because each guest is $2 each according to the question.
In A Circle:
If AB || CD ⇒ BC = AD = 16°
AB + BC + CD + AD = 360°
AB + CD + 2BC = 360°
48° + CD + (2*16°) = 360°
CD = 360° - 48° - 32°
CD = 280°
