Let the height of the tree be x, then 18 inches / 3 feet 9 inches = x / 21 feet 3 inches 18 inches / 45 inches = x / 255 inches 45x = 18 x 255 = 4590 x = 4590 / 45 = 102
Therefore, the tree is 102 inches = 8 feet, 6 inches tall
I believe "BY || JE" means that those two lines are congruent, which means the slope of JE would be the same as the slope of BY. So in this case the answer should be B. -1/5.
