Evaluate the expression StartFraction 12 minus 3 y Over 2 EndFraction plus y StartFraction 2 y minus 4 Over y EndFraction for y = 3

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

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