Answer:
Option C
Explanation:
Positive externality, and too few resources are devoted to research as a result.
Positive extremely is described as benefit enjoyed by a third party due to economics transaction.
Research into new technologies will produce positive externality particularly of great benefits to the society which in this case are the third party and due to this, too few resources are devoted to research as a result.
Answer:
The tip would be $6.36
Explanation:
If the bill was $42.40, and you wanted to leave 15% tip

0.15 is the same as 15% and you multiple it by the amount to get your tip
The last one pls give a brainliest if u want anyways I hope this helps
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