There are a total 12,715 seats in an arena. Of the total, 7,512 seats are currently occupied by spectators. How
many seats, to the nearest percent, are currently oc-
cupied?
A. 12
B. 52
C. 59
D. 61
E. 75

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.