Answer this math question. ill give brainliest.

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

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?

How can constraints be used to model a real-world situation?