RS=9y+2, ST=3y+6, and RT=14y-2. What is the value of y? Find RS, ST, and RT

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 wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.