Solve the equation for x. -4x+6+y2 = 54

O A. X=-3y2 +12
O B. x=-12-12
O c. x= -1 1/2-12
OD. x1y2 +12

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb