Answer:
I got 18.26
Step-by-step explanation:
Added them up
Ok did your teacher say anything about not being able to use negative numbers or fractions? If not can you use fractions or negative numbers.
It takes 1.7 x 10 ^4 for light from the sun to reach the comet.
<h3>How do scientific notations work?</h3>
The number is written in the form
where we have 
Scientific notations have some of the profits as:
Better readability due to compact representation
Its value in terms of the power of 10 is known, which helps in the easy comparison of quantities differing by a large value.
A comet is about
km from the sun.
Light travels at about
km per second.
= 
Hence, It takes 1.7 x 10 ^4 for light from the sun to reach the comet.
Learn more about scientific notation here:
brainly.com/question/3112062
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Answer:
2.45 tons
Step-by-step explanation:
square root of the sum of each number squared
15 is the answer hope this helps