5. How many one-to-one correspondences are there between the sets ( x, y, z, u, v} and {1, 2, 3, 4, 5} if in each Correspondence 4. X must correspond to 5? b. x must correspond to 5 and y to 1? ". X, y, and : must correspond to odd numbers? 's, Which of the following represent equal sets? 4 ja, b, c, d) B = ( x, y, z, w ) Car,da,b) D = (x 1 s x = 4 and XEN) F = (0) H = [) I'm ( x x m 2n + 1 and n EW} Lm (x x = 2 - 1 and n EN} 7. Find the cardinal number of each of the following sets. Assume the pattern of elements continues in each part in the order given. *. (201, 202, 203, .... 1100} b. (1. 3, 5, .... 101) C (1, 2, 4, 8, 16, .. . . 1024) d. (x x x,k= 1, 2,3, . . ., 100} 8, If U is the set of all college students and A is the set of all college students with a straight-A average, describe A. 9. Suppose B is a proper subset of C. a. If #(C) - 8, what is the maximum number of elements in B? b. If n(B) - a, what is the maximum number of elements in C7