Free points. I just took my unit math test. Turns out its 100 points. I know for a fact that I did not get the first question correct but I did not have enough time to change it.

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)

How can (square root of 25) ^2 be rewritten?

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6