What is forty percent of fortytwo thousand pounds?

What was the middle year of the 20th century? What is a 2 degree carbocation? What is the same as 1 inch? In a school playground a child runs 5 m in the x-direction and then 2.0 m in the -y-direction what expression represents the magnitude? Examples of figures with horizontal and vertical symmetry? What does roman numeral MCD mean? What is a whole number and it's opposite between -0.5 and 0.9? Is pi in mathematics important? How is volume of rectangular shape object determined? F-statistic significant at a 95 percent or greater confidence level? Where do you find date on cinq francs note? Is it true that square of an integer will always be an integer? The number of degrees in an angle? What are facts on the number 45? National highway no7 is how many kilometer long? What is the approximate square root of 89 to the nearest whole number? What is -3- 4? How many hours equal 90 minutes? How many calculations can the human brain perform per second? 18 degrees equals how many degrees F?