Answer: 720 cherries.
Step by step solution:
According to Greg, the perfect cherry pie has a ratio of 240 cherries per 3 pies.
[tex]\frac{240\text{ cherries}}{3\text{ pies}}[/tex]If he wants to make 9 perfect cherry pies:
[tex]9\text{ pies}\times\frac{240\text{ cherries}}{3\text{ pies}}=720\text{ cherries}[/tex]Greg will need 720 cherries.
