The Chicago Manual of Style recommends spelling out the numbers zero through one hundred and using figures thereafter—except for whole numbers used in combination with hundred , thousand , hundred thousand , million , billion , and beyond (., two hundred ; twenty-eight thousand ; three hundred thousand ; one million ). In Chicago style, as opposed to AP style, we would write four hundred , eight thousand , and twenty million with no numerals—but like AP, Chicago style would require numerals for 401 ; 8,012 ; and 20,040,086 .
Due to the lack of electricity and direct sunlight, I decided to use a solar panel paired with a light sensor on the outside of my locker to power a strong, blue LED light, which is best for photosynthesis and plant growth. A friend taught me how to solder and helped me create the solar panel setup, which turns on the blue light only when it is dark outside so the plants experience the proper light cycles. I also set up a system to slowly water the plants automatically. This involved a series of drip bottles—which another friend had for his old, now deceased, pet guinea pig—arranged to drip into each other and then onto the soil.