The right answer for the question that is being asked and shown above is that: "An unabridged English-language dictionary is a shortened dictionary for everyday use, and it is the dictionary that most people have in their homes and offices."
Answer:
Mum is not making salad
Mum is making biscuits
The grils are not drinking lemonade
the girls are drinking tea
Dad is not reading a newspaper
Dad is reading a cookery book
To get the answer u must do (-7273828)+(28272838)-(2728283)=(-268473847)