2.5.3 test becoming American answers

What is the recommended decibel level for the human ear? What percent equals one third? What two numbers multiply to be 120? What is 27 prime factorization? How many lines of symmetry does a irregular star have? What percentage of Americans live to be 12 years old? Delia drove her car 179 miles The car used 6.04 gallons of gasoline on the drive Estimate the car's gasoline mileage in miles per gallon? What number can make a rectangle 3 tiles wide and 6 tiles wide? What is blacker than the blackest black times infinity? If density is mass divided by volume what is mass? If a right-angled triangle has 1 angle equal to 30 degrees what size is the remaining angle? How many 3 letter combinations are in ahtm? What is 1-10 roman numerals? If you give 40 people a million dollars each how much would it cost? Are 52 and 79 prime numbers? What is 55 percent of 400 dollars? How many harshita's are in the world? What is the largest five digit number that can be rounded to 80000? What is 0.373 as a fraction? What cost 3 million dollars to build?