If f(x)=|x|+9 and g(x)=-6, which describes the value of (f+g)(x)

The product of two negative rational numbers is always zero sometimes zero never zero

30 pts, will mark brainliestwhat is the period of the sinusoidal function? (picture 1)what is the minimum of the sinusoidal function? (picture2)what is the maximum of the sinusoidal function? (picture 3)

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=