Answer:
The sum of 81 is 9*9=81
Step-by-step explanation:
Answer:
Approximately 81 books
Step-by-step explanation:
731 / 9
Divide 731 by 9 to get 81.22...
731 / 9 = 81.22...
Hey there! Hello!
I believe what this question (more of a statement) is asking is to identify what a letter that represents an unknown number is called. Most of the time, i refer to it as just a variable, or an unknown variable. It can also be referred to as just an unknown value.
Feel free to ask me any additional questions if you have any! :-)