If f(x)=x-3/x, g(x)=x+3, and h(x)==2x+1, what is (g*h*f)(x)?
A) (g*h*f)(x)=3x-6/x
B) (g*h*f)(x)=6x-6/x
C) (g*h*f)(x)=2x+4/2x+7
D) (g*h*f)(x)=8x+1/2x+1

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way