Find the width, height, and area of a 50 inch TV with a 16:9 aspect ratio

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?