What is the operation used in 3r?
-subtraction
-addition
-multiplication
-division

Multiplication

Step-by-step explanation:

3r means 3 times R. We don't write it just like we don't write 1.0 for 1 or 1.000... A number in front of a variable means that number times that variable.

Hope this helps! <3

subtraction and multiplication

a

step-by-step explanation:

the answer is a

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