The center of a circle is at (−3, 1) and its radius is 9. what is the equation of the circle?
a.) (x+3)2+(y−1)2=81
b.) (x−3)2+(y+1)2=18
c.) (x−3)2+(y+1)2=81
d.) (x+3)2+(y−1)2=18

What are the soultion(s) to the quadratic equation 40- x^2=0

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain

Two florida panthers were weighed. one weighs 6x+21 pounds and the two together weigh 14x+11 pounds how much does he other panther weigh alone