Answer:
true
Step-by-step explanation:
3 + (5 + 7) = (3 + 5) + 7
3 + (12) = (8) + 7
15 = 15
I think that is 90000 because you said 9 to the power of 4 and there are 4 zeroes
Kristen will have .17 cents after she pays her share.
Answer:
-19
Step-by-step explanation:
When you subtract from a negative it becomes a bigger number in the negatives. Subtract from a negative is also kind of like adding the 2 numbers then making it negative.
<u>Example:</u>
-2 - 2 = -4
2+2=4 making it negative will give you the answer of -4
-9-10 is like 9+10 which equals 19. Making it negative will give you the answer of -19
