Who invented heptagon?

Is 41.1 a whole number yes or no? What is 2 over 8 in a decimal? How many faces edges and vertices are there on a cylinder? Is 4 cups bigger than a pint? Which is the closest estimate for the product of 2 x 19 x 5? What is the symbols of inversely proportional and directly proportional? If you travel at 60 mph and go 10 miles how long will it take? What is 20 percent in fraction form? How do you get the GCF of the numbers 48 and 88? Is one-half greater than one-quarter? What is it called when you multiply a number by one? How many dl in 1 kl? What is 5×5? What is the Fraction of the circumference of a circle? What kind of calculator do I need for my Calculus class? What is 40 million divided by ten? Why stopped clock showing 1010? What is two sixths written in simplest form? What is the story of Lucifer and Michael? How do you divide electric bill into four parts?