We know we have $4.40 for 4. Divide 4.40 by 4, you get 1.10. So it's $1.10 per notebook. Therefore, divide 6.60 by 1.10. You get 6, so you can get six notebooks with $6.60.
Hope this helps!
Answer:
$210
Step-by-step explanation:
Cost of 44kg onions = $308
Cost of 1kg onion = 
Cost of 30kg onions = 
Isn’t it supposed to be a minus sign? For it can be like w-2, w-2 ?
At least about 20 points it can depend on the class but not really.