F.. = ?
the action force is the balloon pushing the air out.
what is the magnitude of the reaction force of the air
pushing on the balloon?
fballoon =-3 n

The answer is c hope this

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached