Answer: To find a residual you must take the predicted value and subtract it from the measured value.
Step-by-step explanation:
Answer:
5400
Step-by-step explanation:
2400+3000
Half of 2/3 is:

This means that 1/3 was left. This also means that they ate 1/3 of the lasagne.
Model diagram can be seen in attachment.
30 x 0.33 = 9.90 And that's the answer