The mass of the earth is 5.97x10 24 kilograms. the mass of the moon is 7.34 x 10 22 kilograms

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?