If a parabola has a directrix of x = 3 and a vertex of (-2, 4), what are the coordinates of the focus? *
A(-7,4)
B(8,4)
C(1,4)
D(3,2)
E(0.5,4)

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

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?