TX is the altitude as it is perpendicular to the base TW and UV
The square angle marker at point X indicates a right angle (aka 90 degree angle)
Note: altitude is another way of saying "height"
debt is greater than 25
you owe more than 25 dollars
88.6 as a mixed number is 14 2/3
First you divide 1200 by 25 (1200/25) it comes out to 48.
That means the he types at a rate of 48wpm. So then all you have to do is multiply 48 and 45 and you get 2160 words.
The value of 3 in 50349 is three tenths or 0.3