What are the customary?

What is 4 to 8 into a eqvilent ratio? What is a eighth of forty eight? How many feet and inches ate in 45 inches? Is a trapiziod always a quadrilateral? What is 65 per thousand in decimal form? How many 2by 2by 2by 1by 1by 1by? What does plus or minus mean in land mesurment? How many liner feet are in 10 feet? What kind of shape is a triangle? How do you put eight and four hundredths in in standard form and expanded form? When is the statical mode useful? What is 39.78 divided by 0.195? What are the prime numbers between 41 and54? What is 7 over 16 minus 1 over 4? What does borrowing 20 thousand dollars at simple interest rate of 8.9 per cent for 72 months mean? Factor 49x squared minus 7x minus 72? What are members outside of a set called? Does 3 go into 321? What is the compliment of a 68 degree angle? How do explain how to compare two decimals with a different number of digits to the right?