ayudenme porfavor con las respuestas y los pasos es para hoy chicos ayudenme se los agradeseria un monton doy puntos.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

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)