Finding definite integral: I'm not sure how to find part a in the screenshot.

And I don't know how to find absolute values for part b:
(b) Given that f(4)=10 , write an expression for f(x) that involves an integral. Use this expression to find the absolute minimum value of f and the absolute maximum value of f on the closed interval 0≤x≤7 . Justify your answers.

Questions 7-8. use the following table to answer. year 2006 2007 2008 2009 2010 2011 2012 2013 cpi 201.6 207.342 215.303 214.537 218.056 224.939 229.594 232.957 7. suppose you bought a house in 2006 for $120,000. use the table above to calculate the 2013 value adjusted for inflation. (round to the nearest whole number) 8. suppose you bought a house in 2013 for $90,000. use the table above to calculate the 2006 value adjusted for inflation. (round to the nearest whole number)