It depends on the precision you want.
Considering the data you've given, if you want the result in cm, the numbers should be rounded to 9 and 3, thus giving a total of 12, with two significant numbers.
But taking into account the precision you've reported, looks like the decimals do matter, and in that case, the numbers should be rounded to 9.0 and 2.8, giving a total of 11.8, thus, three significative figures.
|x-4| <3
=>. x-4<3 or -(x-4)<3
=>. x-4<3 or x+4>3
=>. x<7 or x>1
So solution is x>1 & x<7. =x€(1,7)
Hope it helps...
Regards,
Leukonov/Olegion.
Answer:
no options
give the options and i will edit my answer
Well for both of these I would say for question 1:
1. Having low paid jobs and are unable to get a home and are poor
2. Having difficulties with switching cultures
3. They wanted an anarchist
And for the muckrakers:
1. They made the child labor laws rewritten
2. They made fair business practices
3. They exposed political corruption
Also if these are similar to some other answer I just wanted to help.