290.
We know that the hundreds is two already.
The tens digit is 9 more than the ones digit, but since a digit can't be more than 9, the ones must be 0.
So the tens is 9 and the ones place is 0. Hopes this helps :)
Step-by-step explanation:

Answer:
615.4³
Step-by-step explanation:
Answer:
line NM
Step-by-step explanation:
Since planes extend infinitely in all directions, planes intersect at a line, not at a line segment.