*urgent first answer gets brainliest! *
the digits of a two digit number add up to 7, but when the digits are reversed, the original number increases by 9. what is the original number?

Figure abcde is a regular pentagon. segment ae is located at a (2, 1) and e (4, 1). what is the perimeter of abcde? 4 units 6 units 8 units 10 units

Standard deviation of 19,29,21,22,23

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .