Is 4.444444... rational

What is 28 plus 22 added in two different ways and 28 minus 22 subtracted in two different ways but working out all four calculations entirely in Roman numerals with explanations? What is ten million one thousand and one as a numeral? What is fraction form of -1.9? What is the square root of 4 plus the square root of 9? How do you calculate 7.5 percent? What is half of 408? What books of the Bible contain the word faith? If the length of a rectangle is 5square root of2and the width is 2 the square root of 3 what is the area of the rectangle? Is it illegal to cross the white line at the side of the road? How do you know overestimate and underestimate? What does 'cust' mean? What are the Roman numerals 1 to 30? What rhymes with the word causality? Who came up with the seven-day week? What weighs 1 L? What is the value of a 1958 D nickel? What are the the five types of power? What is m in the problem -5 m -35? Is the product of two mixed numbers less than between or greater than the two factors? how many surface a cube have?