Only x-intercept because if you want to know about x-intercepts so y will be zero (y=0)
then 0 =4x^2 -12x + 9
0=(2x-3)(2x-3)
0=2x-3
so x=3/2 that is x-intercept
100 degrees would be obtuse
The answer is 66% because you divide 5.28 divided by 8
I think the answer would be 4/7 because it is the only fraction where the numerator is more than half of the denominator