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f(x)=x+5, g(x)=x-5. gf(-5)=?
-5
f(x)=x+5, g(x)=x-5. fg(5)=?
5
f(x)=x+5, g(x)=x-5. fgg(5)=?
0
f(x)=5x, g(x)=4x. fg(x)=20
1
f(x)=5x, g(x)=4x. fg(-1)
-20
f(x)=5+x, g(x)=x-5. fg(x)=5
5
f(x)=5+x, fff(-10)=?
5
f(x)=x/5, g(x)=5x. fg(x)=10
10
f(x)=x/5, g(x)=5x. fg(x)=1
1
