Two lines with the same y-intercept are perpendicular
Always sometimes or never true

What is the volume of the sphere shown below with a radius of 3?

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 sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers