(0.45 x 0.45 x 0.45 - 0.21 x 0.21 x 0.21) / ( 0.45 x 0.45 + 0.45 x 0.21 + 0.21 x 0.21)A0.45B0.41C0.24D0.26Answer: C. 0.24 Read Explanation: (a³-b³)/a²+ab+b² = a-b = 0.45 - 0.21 = 0.24Read more in App