What is Central Place Theory? And don't even dare to copy n paste something from goo. gle.

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation