What is the value of x?

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x =

The la dodgers hit the most homeruns in 2014. the number of homeruns accounted for 6% of the entire major leauge baseball homerun count. if 583 total homeruns were hit, approximately how many did the la dodgers hit

Which expression gives the area of the triangle shown below

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)