If the sphere shown above has a radius of 4 units, then what is the approximate volume of the sphere? A. 21.33 cubic units B. 41.67 cubic units C. 85.33 cubic units D. 500 cubic units

look at photo

1. a^4+8a^3+24a^2+32a+16

2.y^8+8y^7+28y^6+56y^5+70y^4+56y^3+28y^2+8y+1

3.x^6-3x^4y^2+3x^2y^4-y^6

the equation of the line that passes through the points and has o form

if line passes through the points (-1, -3) and (2, 1), then

the equation in the standard form is