What is 400x500?

What percent of 95 mg is 3500 mg? What is 12.3 times 7.07 explain? What is the first 5 multiples of 6? How do you do your over all average? How much money is in 127 quarters? What is 198 rounded to the nearest hundred? How do you round 147 to the nearest whole number? Why is the product of a positive integer and a negative integer a negative integer? Is masochism common? Is 105 composite? What are the factors of 399? What 600 rounded to the nearest hundred? How many stamps do you need if your envelope weighs 4 ounce's? What is 200000000000x12? Can an even number be a prime number? Factor x2 equals -5x-6? How many square feet is 20ft x 9ft? What is the hcf of 18 and 9? What does stepfon mean? What is the word form for .58?