Answer:
It would be A.
You can trust me because a right angle is 90 degrees, so you would add the two angles.
Answer:
2 and - 
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
3y = 6x + 9 ( divide all terms by 3 )
y = 2x + 3 ← in slope- intercept form
with slope m = 2
(i)
Parallel lines have equal slopes, thus
the slope of line t is 2
(ii)
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
, thus
the slope of line r is - 
100,1000,10,000 is the correct answer or maybe 0
2 x 2 7/8 = 5 3/4 hope it helps
Choice C, because

So it's less than what she originally had (which isn't possible)