$1.20 is the answer because when you add it together and then divide the total by your answer you get that
Its C.
Negative x Negative is positive, so its not A or D.
Positive x Positive is Positive, so its not B either.
C is your option because Positive x Negative is Negative, and vice verca.
I believe the answer is x⁢10 if it’s incorrect i’m so sorry
Answer:
1.39 × 10¹² or 1.39 × 10^12
Step-by-step explanation: