a. 32 answer sheet. 1. To simplify the expression 5 -3 9 = 32, what should you evaluate first? b. 3 X 9 C. 9-9 d. 5 - 3 2. Evaluate the expression when a = 2,b= 4, and c= 1. a. -2 b.-1 d. 1 nocas What is the cost of each piers 2ab с C. O That of 5 in bo 10