The answer is: c
Explination 30-9=21
3.141592653589793238462643383279 502884197169399375105820974944 5923078164062862089986280348253421170679
Answer:The answer is Equal.
Step-by-step explanation:First you need to add A and 2A together. that equals 3a. Since 3 is left , it could be -1 and 4 because it would equal the same thing hope this helped :)