Y varies directly as x. When x=3, y=5. Find y when x=4.

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

Need plz been trying to do it for a long time and still haven’t succeeded