1 For example, if you had $800.00 profit from self-employment, you would multiply 800 by .9235. 2  800 x .9235 = 738.80. 3  You would enter 738.80 on line 4 of the Short Schedule SE form. 4  If this amount is less than $400 you do not need to pay self-employment tax.
it is matter composed of organic compounds that has come from the remains of organisms such as plants and animals and their waste products in the environment organic molecules can also be made by chemical reactions that don t involve life
Phytoplankton rely on sunlight and available nutrients for energy and growth. Carbon dioxide, water, and light are necessary for photosynthesis. Nitrate, phosphate, silicate, and carbonate are all important in the production of plant matter. Silicon, phosphorus, and nitrogen also play a key role in growing plants.