They are all larger than 90 degrees, and in a triangle they would all be obtuse angles.
20% is what you won't pay therefore 80% is what you'll pay.=80/100*220=$176
The number 23.57 is 10 times larger than 2.357.
3/4 is longer than 2/15 by 37/60
Let x rep cost of dvd in $
so the cost of tv is 3x
and x + 3x = 1132
4x=1132
x=1132/4
x= 283 and 3x=3(283)=849
