What is the R factor of eighteen inches of blown-in insulation?

How do you find quadratic equation with only 2 solutions? What are the advantages and disadvantages of the PHP functions include and require - and any functions that branch off of them? What are the first 12 multiples of 24? What is the answer for punchline algebra book a page 2.9? What is two thirds divided by 8 show work? What is accepting or rejecting your hypothesis? What is the perimeter of a rectangle 4.5m times 1.5m? How is 1 million and 1 billion alike? What is 16 times 35? What is your grade if you get 16 out of 25 right? What is the area and perimeter of a scalene triangle when angle 75 degrees is opposite to side 25cm with another angle of 42 degrees? What is 40 divided by six with a remainder? Is 81 over 72 simplified? How do you calculate 26.325 as a whole number? What is 487.362 rounded to the nearest hundred? When do you say a number is divisible by another number? What is the LCM of 56 and 63? What is the data that is comprised of numerical values? What is a 9 degree list of a ship? How do you answer a similar fraction?