Answer:
9
Step-by-step explanation:
The blank is 9. You are just multiplying 3 times 3 which gives 9 because 3 squared is just multiplying it with itsself.
Hope this helped! :)
-10y + 10.5
5 - 2y + (-8y) + 5.5
5 - 2y - 8y +5.5
2 times (9+7)
1/40
The mass in kilograms would be: 1.442424
