A certain chemical, the ratio of zinc to copper is 4 to 15. A jar of the chemical contains 525 grams of copper. How many grams of zinc does it contain? HURRY PLEASE

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

In an improper fraction, is the numerator equal to, less than, or greater than the denominator