Respuesta :
Answer:
9 trays
Step-by-step explanation:
for deli A, (9 trays * $7.50) + $18 delivery = $85.50
for deli B, (9 trays * $9.50) + $0 delivery = $85.50
if you need to check your other answers, substitute the 9 trays for another number and you'll see the end price is different.