Will anyone be my true friend , who can understand n support me?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

The graph shows the amount of money noah earned based on the number of lawns he cut. which list shows the dependent quantities in the graph?