"Which expression is NOT equivalent to the sum of 36 + 54? a) 18( 2+3 )
b) 4( 9+6 )
c) 3( 12+18 )
d) 2(18+27 )
*pl helppp*

The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√, where h is the height (in feet) above the transmitter. estimate the maximum distance x (in nautical miles) between the plane that is receiving the signal and the transmitter. round your answer to the nearest tenth.