Igive ! can someone tell me what a radical is

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

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.