Could you assist me with this question, please?

8. Let Q be the triangular region with vertices {1,0}, [2.1), and (2, l). Assume the density at each point in [I is given by p(;r, y) = 1:. {a} (10 points} Find the mass of [1. (b) Set up the iterated double integrals to compute the center of mass of ft. (No need to compute the actual values.)