if the aspect ratio of a rectangle is 8:6 and the width is 11in, what is the length of the rectangle?

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

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?