Graph 2 + 3y = 6. Please hurry

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

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

Iwill give you ! what is the measure of ∠v ?