The answer for this question is -7
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Answer: 4th option (the one already selected)
Step-by-step explanation: as the X variable changes by 7 the Y variable changes by 1
Energy = Planck's constant * frequency
= 6.626 * 10^-34 * 5.66 * 10^8
= 3.7503 * 10^-25 Joules
.5 is the answer
So do 7-6 first.
It will look like this.
1/2c=1
Then divide 1/2 from 1
So 1/1/2 is .5