Answer:
a. 
b. 
c. 
Step-by-step explanation:
a. 
b. 
c. 
Answer:
Step-by-step explanation:
3rd
-7 is the missing exponent
The 1st figure is correct, the 4th one seems very similar to the 1st one. But the red shape is closer to line k. So the 1st one is correct
This means 900÷1000 because 10 to the power of 3 is 1 and 3 zero which is 1,000. The answer will be 0.9