How many nines go in 54?

What is the meaning of inverse matrices? What is 2.84 with tax? If 60 km is 30 percent how much is 100 percent? Is it true that in non Euclidean geometry states that the 3 angles of any triangle is 180 degrees? Why k is denoted as thousand? What is the answer to 12time 6times 6? What is 35 of 100? How may gallons are in a cup? 9a plus 2 equals 4a-18? What is 781.92 rounded to the nearest 100 dollars? Do you tithe 10 percent of every paycheck? What is the circumference of the lunar orbit? What is 15 percent more of 20? How many times is the word meditate used in the bible? What is the difference between 54.05 and 0.054? PARALYSES ARE DIVIDED INTO WHAT TWO GENERAL GROUPS? What is 0.245 to the nearest tenth? Two thirds of a foot equals how many inches? What shape have 6 sizes? What is the width of a rectangle if the area was 180 cm squared and the length was 15?