Answer: 84
<u>Step-by-step explanation:</u>
Set up a proportion as follows: 

Cross multiply: 12x = 7 × 144
Divide by 12: x = 7 × 12
Simplify: x = 84
346 divided by 7 is: 49.4285714286
Or, if you want to round the answer is just 49
Hope I helped!
- Amber
Answer: 2.456 x 10^11
Step-by-step explanation:
You move the decimal to the left until there’s no more zeroes
Bearing in mind that

I can make this much from that, check the picture below.
I believe the answer would be 62.00.