12.
Aunty Frieda shared $750.00 among her three nephews Greg, Chris and Reon.
Greg got $140 more than Reon.
Chris got $80 more than Greg.
(a)
How much money did each nephew get?
Greg:
Chris:
Reon:
(3 marks)
(b)
Calculate the difference between the highest and lowest amounts of money shared.
1 mark)

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.