9x40= 360
9x30= 270 so the common factor is 9 I have no idea about the exponent stuff
Answer:
See explanation
Step-by-step explanation:
1 step:
n=1, then

So, for j=1 this statement is true
2 step:
Assume that for n=k the following statement is true

3 step:
Check for n=k+1 whether the statement

is true.
Start with the left side:

According to the 2nd step,

Substitute it into the 

So, you have proved the initial statement
The answer is B) 0 miles. Because displacement is the shortest distance between starting point and ending point. Since, his starting point and ending point is the same, hence, his displacement is 0 miles.
It is 1,6 dollars for each pendant :)
A random guess could be 495866 because if you round is to the nearest thousandths it will be 500000