Ans
wer:
The earliest form of trade was BARTERING
2. Negotiating in trade means you are coming to an agreement on an item's value
The air we breathe that is the answer I believe it's right
Answer:
Hello! Your answer would be “Both the pilot and the serum would be lost if the plane crashed”
Explanation:
2nd & 3rd sentences in the passage explain.
I’m pretty sure the answer is b to brainstorm different ideas
