2 in 83628 is the tenths and 208 is the hundreds
B is correct. The distance formula can be written correctly in several different ways. Examples:
sqrt( change in x)^2 + (change in y)^2 )
sqrt( (x2-x1)^2 + (y2-y1)^2 )
Five Hundred is in word form to put it in standard notation, we just write he number like so 500.
You need to multiply another number each time.
For Example:
3x2=6
6x3=18
18x4=72
72x5=360
360x6= 2,160
It's a pattern
