How can you find an area of a figure in square units by multiplying then adding?

What is the largest number that will divide into 36 72 and 90 with no remainder? What is the value of the exponet in the scientific notation expression of the number 6140000000? how do you write 5.52 in expanded form? How do you convert twelfths into hundredths? What is longer dm or cm? How do you factor x2 minus y2? Is (2, 3) a solution to this system of equations? What do x-t graphs look like for constant velocity? What is 53 times 5? What times four fifths equals two fifths? What are three different quotients that equal to 4 to the negative fifth power? What is the square root of x to the power of 8 to the power of 8? How many yards are in 230 feet? What is 10 feet the same as? How many days are in 8 years? Is a square regular quadrilateral explain? Other than 6 what is another perfect number? What is a symbol that indicates the type of calculation to perform? Is 10 over 16 equivalent to 15 over 24? If you were born in 1958 how old would you be in2014?