Answer:
Linda was 37.8 m away when the arrow hit the ground
Explanation:
We are given that The arc of the arrow can be modeled by the equation :

Where x is the horizontal distance (in meters) from Linda
y is the height (in meters) of the arrow.
Now we are supposed to find How far from Linda does the arrow hit the ground
So, y must be 0 when the arrow hits the ground
So, Substitute y = 0 in the equation :

Since distance cannot be negative
So,Linda was 37.8 m away when the arrow hit the ground