In a certain chemical, the ratio of zinc to copper is 3 to 11. a jar of the chemical contains 462 grams of copper. how many grams of zinc does it contain?

Acircle has a circumference of 28.36 units what is the diameter of the circle

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

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?