natasha larkin gross weekly salary is $ 2,125. the social security tax is 6.2 percent of the first $90,000. how much social security tax will natasha pay in week 45?

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)