Which equations are correct -6^4(4y^2+2)=-24y^8-12y^4 -4x^2(2x^2+5)=-8x^4-20x^2 -4b^3(5b^2+3)=-20b^6-12b^3 -5a^4(2a^2+4)=-10a^6-20a^4

The two cylinders are similar. if the ratio of their surface areas is 9/1.44 find the volume of each cylinder. round your answer to the nearest hundredth. a. small cylinder: 152.00 m3 large cylinder: 950.02 m3 b. small cylinder: 972.14 m3 large cylinder: 12,924.24 m3 c. small cylinder: 851.22 m3 large cylinder: 13,300.25 m3 d. small cylinder: 682.95 m3 large cylinder: 13,539.68 m3