Tom finished 6/7 of his math homework on the school bus. What percent did he finish on the bus?(If needed round to the nearest hundredth)

Which statements are true? see picture

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

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?