Answer:
9a-7
Step-by-step explanation:
8a-6+a-1
Collect like terms
8a+a-6-1
= 9a-7
8.03×10^10. move the decimal behind the eight and count the amount of places the decimal moved and that would be your power.
Answer: the mean will be higher than the median and mode
Step-by-step explanation:
I dont really understand your question