What is an enthrographer?

Parallelogram of only two of sides are parallel? How long would it take to go 3000 miles at 3000 feet per second? WHAT IS SEVEN AND ONE HALF MINUS ONE AND ONE FOURTH? Conversion of ton to metric ton? What is Four thousand one hundred twenty-six and seventy-three hundredths in standard form? How many 50's are there in 450? What are the importance of measuring volume and capacity? How do you write 158259000 in words form? What are the three ways to express a ratio? How do you find about an airline crash in Montana in the 1950s? What is the difference between a rhombus and a parralelogram? Is 9 and 21 relatively prime? How many questions out of 52 can you miss to get 70 percent? How many sylables are in the word completely? How many times does the Bible use the word helper? How virtulent phages can multiply? What is VII in Roman Numerals? How sustract fractions? How do you write 249.4 million in standard form? What two numbers can be multipled get 28 and added to get 0?