The correct answer is: 8.8 x 10^15
Correct option:
d. 1.64
<h2>
Explanation:</h2>
An object is launched vertically upward from a 25 foot platform and is modeled by the following function:

So this is the equation of a parabola because the object is a projectile so it follows the Projectile Motion.
The object fall back to the ground when
so:

Since time can't be negative, we only choose the positive value. therefore:
<em>The object fall back to the ground after 1.64 seconds</em>
<em></em>
<h2>
Learn more:</h2>
Projectile motion: brainly.com/question/12554459
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Total time taken by Jon was 4.5 hours
Time taken by Sam was 5.5 hours
This implies that John traveled faster than Sam because he took shorter time to get to the camp, thus we conclude that from the given information, the correct answer is:
Sam and Jon traveled at the same rate of speed to camp.
Answer:
m= 15/7
Step-by-step explanation: