The diagram shows a design for some signs that will be installed in the aquatic section of the zoo. the Signs will have a decorative rope border among the perimeter if each unit on the bed represents 10 inches what is the perimeter of the sign

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)