Answer:
B x+31
Step-by-step explanation:
Step-by-step explanation:
dear by changing the sign by elimination method everything gets cancelled
Answer:
r = 21
Step-by-step explanation:
nth of sequence P :

: 
Answer:
-I
Step-by-step explanation:
Given :
I= 
Now

And 
Answer will be -I
The answer would be 280 because 28x10 is 280