Find the equation of the circle with center at (-1, -4) and radius of 2.
a. (x - 1)2 + (x-4)2 = 4
C. (x + 1)2 + ( + 4) = 2
b. (x + 1)2 + (y + 4) = 4
d (x - 1)2 + (-4) 2

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.