It’s d, because thats the formula !! mark me brainliest so I can help more people please !!
<span>In geometry, planes are two-dimensional spaces which extend infinitely. If they do not intersect at all, they are considered parallel. However, if they do intersect, that intersection come in the form of an infinitely-extending collection of 1-dimensional points, which collectively form a line. As such, the answer is "line".</span>
Answer:

Step-by-step explanation:
hope this helps
Answer:
21
Step-by-step explanation:
3x3x3=27
27-6=21
Answer:
23.7
Step-by-step explanation: