Compute the total number of possible pocker pairs (two cards with the same number) that can be obtained when taking two cards from a standard deck. Recall that a standard deck of cards consists of 52 cards, numbered A, 2, 3, . . . , 10, J, Q, K and there are 4 suits: clubs, hearts, black hearts and diamonds. The closest number of pairs is: (A) 78
(B) 158
(C) 76398
(D) 467
(E) 1254

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem