Suppose you are given the following information: 2500 | B(S) = 20 B(R)= T(R) = 50000 | T(S) V(R, x)-300 V(R, y)=50 500 y20, 1000] Compute the following 2.1 What is the cost of joining R and S using a hash join. Assume M-22. Show your work. 2.2 What is the cost of a nested loop join between R and S? How much memory is required? 2.3 What is the cost of ? 200(R)