How did economic pressure affect internal migration during World Wars I and 1? Most people could not afford to move during those years, so home buying and moving was mostly stagnant.
Wartime production needs created job opportunities, so many people moved to seek work in that industry,
The need for workers in arms supply factories led to an easing of government restrictions on credit for home buying.
People began to move into multi-generational households because so many of the primary earners went off to fight in war.

Perhaps saving more money for their retirement and getting better life insurance for jackie. and trying to spend less money on unnecessary expenses always . 

Answerin vivo exposure;

The answer is    (d) 7/2======we have    we also  have an integral      notice how function f splits up at x = 0. there's a left piece and a right pieceso we'll need to do the same thing with our integral: split it at x = 0we use a property of integrals that allows us to split up and sum:     notice that for the piecewise function f, the function has the equationf(x) = x when x  ≤ 0. so for the integral  , f(x) = x so it changes into      for the piecewise function f, the function has the equationf(x) = x+1  when x  > 0. for the integral  , we have    therefore, back to our splitted integral: