Answer:
Popcorn is $5.50; soft drinks are $4.00
Step-by-step explanation:
popcorn=p
soft drinks=s
set up a system of equations for both people
2p+3s=23
3p+4s=32.50
multiply the top equation by 3 and the bottom equation by 2 to get
6p+9s=69
6p+8s=65
subtract the bottom equation from the top equation
(6-6)p +(9-8)s=(69-65)
s=4
plug in 4 for s in either equation
2p+3(4)=23
2p+12=23
2p=11
p=5.50
