Last night, Manuel practiced 25% of his exercise list for his martial arts class. If he practiced 8 exercises, how many total exercises does he have on his list?

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 a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Solve -.016x= -16. need solving this