Answer:
16
Step-by-step explanation:
10 + 6 + 4 (xy-9) quadrupal times equals 16
Your answer would be the first on because when you set up your equation you can find 4 by dividing 42,980 by 10 4 times wich will give you 10^4 when you divide exponents you subtract so iwill look like this....
5x10^6
----------= 1.25x10^2
4x10^4
Answer: 4,1
Step-by-step explanation: