It is asking for the length of that leg of the triangle. You would use the Pythagorean theorem. So 11^2+12^2=c^2. The answer is he square root of 265.
The answer to the question is 2:3
8.239 rounded to the nearest tenths = 8.2
To find the answer, you need to round to the nearest tens. Round 142 to 140 and 1 68 to 160. You know that 1+1=2, and 6+4=10, so 200+100=300 pages read.
