Answer:

Step-by-step explanation:
According to the Product Rule for Exponents, 
a = 7
m = 9
n = 4
So,

So, the answer is
.
Hope this helps!!!
Please mark me as brainliest!!!
I would do 12 x 10 = 120
to compensate do 120 - 12 =108 same as 12*9 = 108
The estimate is decent, because we are only $12.00 from the real answer.
G=67/9 or in decimal form g=7.4
2) 849= 850
4) 27= 30
8) 93= 90
10) 861= 860
12) 16= 20