HELP QUICK! WILL GIVE BRAINLIEST! 15 PTS! ALGEBRA 1 A study analyzed the average yearly salt intake in the United States from 2012 thru 2017. The data is summarized in the table:

Year Annual Salt Intake
(grams)
2012 3,618
2013 3,646
2014 3,680
2015 3,716
2016 3,751
2017 3,790

The study found that the data after the year 2012 can be modeled by the function f(x) = 36.4x + 3,608, where x is the number of years since 2012 and f(x) is the total amount of salt ingested in grams. Describe the significance of 3,608.
The average amount of salt in grams used in 2013
The average amount of salt in grams used in 2012
An estimate of the average grams of salt used in 2013
An estimate of the average grams of salt used in 2012

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )