Due at 11:59 I need help

What is the ratio of the length of an object in yards to the length of the same object in miles?

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?

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the