At a cafe, jen brewed 1/2 liter coffee. jen also made 2/6 liter hot chocolate. what quantity of drinks did jen make altogether?

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?

Find the solution on the interval [0, 2pi)

The sum of five and a number n is at least 12