Answer:
A. -9
Step-by-step explanation:
If one of the variables were negative than, it would not be able to equal 2/7.
Answer:
4.2389 x 10^0
Step-by-step explanation:
There is no zeros meaning no power of 10.
Answer:
1
Step-by-step explanation:
6/2(1+2) = 6/2(3) = 1