I can't figure out steps c and d

To evaluate the following integral, carry out these steps. a. Sketch the original region of integration R in the xy-plane and the new region S in the uv-plane using the given change of vari b. Find the limits of integration for the new integral with respect to u and v. c. Compute the Jacobian. d. Change variables and evaluate the new integral, x2 x + 7y dA, where R= (x.y): 0sx57. - - sys6-x: use x=7u, y=6v -U. R N. N b. Find the limits of integration. 0 SUS 1 O svs 1-u c. J(u,v) = 7 (Simplify your answer.)