What shapes can be constructed by polygons alone using the piling method?

What is the number 1503000000000 in word form? Is equals a comparator of maths? A winery has a vat with two valves The inlet valve can fill the cat in 6 hours The outlet can empyty it in 10 hours How long with it take to fill the vat if both valves are left open? What is the largest two digit number with exactly 12 factors? 10 percent of 1184? How many instruments are in toccata and fugue in d minor? A parallelagram with all sides the same length? How long in inches is 28cm? What percent of eighty is one-hundred? Is the length of 256 meter squared closer to 10 or 20? How much money do Americans spend on Halloween candy? What are some tessellations in nature? Are the angles of a quadrangle equal? What does the word secretly mean? What pecent of 20 is 11? What kind of math do you need to be an electrician? How do you find the ratio of similar objects permiters? What book has Charles bukowski's poem Roll the Dice? What is unusal about the size of a limpet's foot? What is 16 over 28 reduced in its lowest terms?