cocoa- rama truffles sells twelve for $18 truffles- r-us, sells nine truffles for 15.00 Mr. Lutz calculates that 12/18=0.6666, and 9/15=0.6. he picks truffles based on his calculations is he correct why orwhy not

Cocoa-rama truffles:
12 truffles for $18
Truffles-R-US
9 truffles for $15
She is wrong, she must divide the price by the number of truffles to obtain the price of a truffle.
Cocoa-rama
price/ number of truffles: 18/12 = $1.5 per truffle