Ahmad starts hiking at an elevation of -50 feet and then stops to the rest at the elevation of 85 ft. which expression represents in elevation from start to his resting place. 50-85. -50-85. -85-(-50). 85-50

Is every rectangle is a parallelogram? true false

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?