This is a review assignment for my calculus 1 class, any help would be appreciated!!!

7. Find :13), for the implicitly defined function x3 + x2}; = x372. 8. Find the equation of the tangent line to f (x) = x3+3 9. Find the equation of the tangent line to the implicitly defined function sin(xy) = x + y at the point (0.0)