For which pairs of functions is (fºg)(x) = X? A f(x) = x2 and g(x)= 1/x
B Rx)= and g(x)-
C o f(x) = x 2 ar
and g(x)= 2-3x
D Rx)=2x-2 and g(x)=2x+2

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

How many solutions does the nonlinear system of equations graphed below have?