Answer:
3 + X
Step-by-step explanation:
because the word sum is only used in addition.
Answer:
<em>x</em> = 16
Step-by-step explanation:
I'd explain but I should also be doing school so I can no longer help you in your journey of greatness my friend...
Goodbye!
Can you take a better picture?
Answer:

Step-by-step explanation:

Answer:
correct answer is 40
Step-by-step explanation:
hope it helps:D