(x-6.5)^2 = 60.25 is the answer
For this case we have that the distance between two points is given by:

Given the points:

We substitute in the formula:




So, the distance is 
Answer:

For this, we use the equation for arithmetic sequence. It is given as:
an = a1 + (n-1)d
where an is the value at n term, a1 is the first term and d is the common difference
For 54,
54 = 12 + (3 -1)d
d = 21
an = 12 + (2-1)21
an = 33
Much of this question is missing. We need more info
Do 37 divided by 9
That's the answer