Abstraction in mathematics is the process of extracting the underlying structures, patterns or properties of a mathematical concept, removing any dependence on real world objects with which it might originally have been connected, and generalizing it so that it has wider applications or matching among other abstract
k-1/2b=47 because the difference is subtraction and half b is a half fraction and it equals 47.
#4 is 47, 48, 49
47+48+49=144
Answer:
It is A, 65
Hope this helps!
