The Key Club started in their first year with 10 students. The Key Club has doubled the number of student members each year. How do I write this down as a formula?

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 diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20