To find out how much the temperature needs to change to return to the initial temperature of 63°F, we'll calculate the final temperature after the drops and rises:
- Start with the initial temperature: 63°F
- The temperature drops by 10°F: \[ 63°F - 10°F = 53°F \]
- The temperature then rises by 6°F: \[ 53°F + 6°F = 59°F \]
Now, the final temperature is 59°F. To return to the initial temperature of 63°F, we need to calculate how much to rise from 59°F:
\[ 63°F - 59°F = 4°F \]
Thus, the temperature needs to rise 4°F to return to the initial temperature of 63°F.
The correct response is: Rise 4 °F.
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