The answer is y+61 or 61+y.
Hope it helps
Answer:
case A. 
case B. 
case E. 
Step-by-step explanation:
we have

we know that

<u>Verify each case</u>
case A) 

therefore
is equivalent to 
case B) 
so
is equivalent to 
case C) 

therefore
is not equivalent to 
case D) 
so
is not equivalent to 
case E) 

therefore
is equivalent to 
case F) 
so
is not equivalent to 
20 because 12 divided by 3 is 4. then you multiply 5 by 4. and you get 20.
Answer:
9
Step-by-step explanation:
54+81=9(6+9)
9 times 9 equals 81
Answer is b or the second option
Step-by-step explanation: