The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 7 to 5. If there were 11,724 total votes, how many no votes were there?

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?