To find the volume of a sphere you have to use the equation V = 4/3 π r³ Substitute in the r value (8) V = 4/3 π 8³ Simplify the exponent V = 4/3 π 512 Multiply 4/3 and 8 (In other words ; (4 x 512) / 3) V = 682.67 π Multiply V = 2143.5838 cm³
You distribute -4 to each in the parentheses then you get -24 - 4b = 4 then you add 24 on both sides and get -4b = 28 then you divide each side by -4 and it equals -7
