The base of a right circular cone has a radius of 8 cm and a slant height of 12 cm. if the radius and the slant height of the right circular cone are each multiplied by 9, what is the surface area of the new cone divided by the surface area of the original cone? select one: a. 72 b. 18 c. 96 d. 81

Iwill mark you brainliest if you ! a radio signal travels at 3.00 • 10^8 meters per second. how many seconds will it take for a radio signal to travel from a satellite to the surface of earth if the satellite is orbiting at a height of 4.2*10^7 meters? a. 1.23*10^16 seconds b. 1.26*10^15 seconds c. 1.4*10^1 seconds d. 1.4*10^-1 seconds