What is a half-smirk?

How would you calculate 9.5 plus 8.5 in two different ways and 9.5 minus 8.5 in two different ways but calculating all four calculations completely in Roman numerals with explanations? What is 3.756.9 rounded to the nearest hundred? 50 students are in a class 20 percent of them werent there how many students went to class? Write in words for 0.2384? What is the answer for 0.027 divided by 0.03? What are the positive and negative characteristics in marriage and family in America? What is 192 in the binary number system? How many degrees are in a semicircle? What is 200mph in kmh? What is the vertical line in cartesian plane? Which is an example of a faulty syllogism? How many minutes are in 343 seconds? What do you call the point of intersection? How do you write 13 50 as a percentage? How percent of people can read in the country Sweden? What is the solution of x squared-14x plus 49 equals 4? What is 2369 divided by 53? When a number has no whole number part should you write a zero to the left of the decimal point? How many inches equal 9ft? What is the per annum interest rate of 18 per cent for 30 days?