The average time it takes a loaf of bread to rise is 2.4 hours with a standard deviation of 0.6. what is the z-score of a loaf that takes 3.6 hours to rise?

How do you find principle and simple interest

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

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)