How many ways can you make change for 65¢ using only nickels, dimes, and quarters?

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

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?