Answer:
The number of brownies in each batch is less than 8.
Step-by-step explanation:
Baked batches of brownies = 2.5
Number of burned brownies = 5
Number of brownies left is less than 15
So, the total number of brownies is less than 15 + 5 = 20
Number of brownies in each batch is
n < 20/2.5
n < 8
So, the number of brownies in each batch is less than 8.