Answer:
O. They use bicycle parts to build their plane.
O. Their plane uses runners on a track to gain speed for take-off.
Explanation:
The two statements above is the showing the fact about the two things which the Orville and Wilbur brothers did differently that when they are building their plane. <em>This was what contributed towards their success when compare with others who attempted similar things.</em>
E - Net Pay is the adjusted income after certain deductions (like taxes, insurance, retierment plans) have been taken out.
Gross income is the money BEFORE deductions are taken, net is after.
