13m in a bd

What is 5 meters subtracted by 300 centimeters? How many 12 year old have a birthday every day? Why are the cross sections of metal beam in the shape of the letter I instead of solid rectangles? A circle has an area of 2.0m2? What is the interior angle of hexagonal pyramid? How do you find square of any 2 digit number? How do you find the volume of a pentagonal prism with bases edges with a length of 5 and the prism's height at 10? What is the diameter of a circle with a circumference of 200? How do you calculate surface area hexagonal prism? What number is halfway between 37 and 73? Divide 7.15 by 3.5? What is non convex quadrilateral? Wo kya cheez hai Jo saal mein ek baar mahine mein 2 bar hafte mein 4 bar aur roz mein 6 bar hum karte hai? What is 30 percent off of 34? What weighs more 4m or 400 dm? What is a polygon with 4 sidesnone of which are the same length? What does 10cube mean? What is relitivly prime? Does a plane have only 2 end points? What is 25 percent off of 65?