Answer:
20 band posters
Step-by-step explanation:
Set up a proportion where x is the number of band posters she should sell:
[tex]\frac{120}{100}[/tex] = [tex]\frac{24}{x}[/tex]
Cross multiply and solve for x:
2400 = 120x
20 = x
So, she should sell 20 band posters.
If she sells 20 band posters and 24 movie posters, the ratio will be 96:80, which is the same as 120:100. Simplified, both ratios are 1.2:1
