Answer:
1890 ml
Step-by-step explanation:
if you add it all together
-2.5 because a positives opposite is a negative.
Answer:
The correct answer will be:

Step-by-step explanation:
It is given that :
Initial temperature, 
Final temperature,

Time taken :

Change in temperature per hour:

Putting the values of temperatures and time:

The error done by Wen was during calculating the values of fraction.
So, the correct answer is :
instead of
She can make 3 batches. 3 batches will take 3 3/4 cups. If she made 4 it would take 5 cups