Answer:
B.) 4 1/2
Step-by-step explanation:


4 1/2
Hope this helped! :)
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We already know that the speed of light is 299,792 km/s.
225,000,000 km* (1 s/ 299,792 km) ≈ 751 s.
(Note that the unit cancels out so you get the answer)
It takes light about 751 seconds from the Sun to reach Mars~
Hi!
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To start, let's add/subtract the fractions (by finding common denominators). Below them are your answers!
1) 1/2 (5/10) + 1/5 (2/10) = 7/10
1) Yes
2) 1/5 (2/10) - 1/10 (Same) = 1/10
2) No
3) 1/2 (5/10) + 2/5 (4/10) = 9/10
3) No
4) 4/5 (8/10) + 1/10 (Same) = 9/10
4) No
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Have a great day/night! :)
~pinetree