Susan made 168 cupcakes and gave some to her 21 students. She then had 1/2 of her cupcakes left. On average, how many
cupcakes did she give to each of the 21 students?

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4

B) greg: 30 points , tremaine 38 points