What is 63 minus 21?

How do you draw 16 to 1 demultiplexer? What solid figure without bases and with only one curved surface? How many number combinations are there if there are six numbers and you have to have a four number combination? Which could be the measures of the three angles of an acute triangle? Latitude lines are also called? Write word name for 20.76 .? Write 208 in scientific notation? 2 equals p in a p? What is the gcf of 96 72 and 88? What is the simplest form of 78 100ths? What are the units of coefficient of discharge? What is the square root 22? What is the greatest odd number using 83067? What is the name of the 90 sided polygon? What is the process called when the lungs are getting bigger and smaller? What does an algorithm named timesTen that accept an integer argument when its called should display the product of its argument mutipled by 10? What is one tenth more than 1.25? How do you find the area of a polygon figure? What do you call people waiting standing on line? How many significant figures are in 6700?