Answer:

Step-by-step explanation:
In scientific notation, the national debt in 2013 was approximately

You can see this by taking the decimal point between the 1 and 6 and moving it 13 places to the right.
The smallest power of 10 that will be larger than this number is
.
If you're meaning write it in standard form it would be
y=1/4x+1
The answer to y= 4x- 1 is 13. substitute 7/2 at x and do 4 times 7/2 minus 1.