Look at the bottom of the page, the answer is there. At least that's what the question says.
Answer:
102
Step-by-step explanation:
89 + a
Let a=13
89+13
102
X=5/2
4x7.5=12x
30=12x
X=30/12
X=5/2
Answer:
If two distinct planes intersect, then their intersection is a line. If two distinct lines intersect, then they intersect in exactly one point. If there is a line and a point not in the line, then there is exactly one plane that contains them. If two distinct lines intersect, then they lie exactly in one plane.
Step-by-step explanation: