Think about it... if the number is bigger than 5 you round up so.. 399 is rounded to 400.
I am going to assume 2.5x is really 25x (typo).
First formulate the equality

Now two results emerge.
.
Hope this helps.
32-15=17
please my answer!!1111!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
a line
Step-by-step explanation:
In geometry, we can define a line as a straight one- dimensional figure without thickness but extends infinitely in both directions.
If we are to put it into more understandable words, we can describe a line as the shortest distance between any two points.
A line has a specific definition in geometry. Every other option listed do not have specific definition in geometry.