I only need 1,2,3,and 4 and show work please

Answer:
1. A. (addition, subtraction, multiplication, division)
2. D. (evaluate exponents, addition, multiplication, division)
3. A. 3²(4 - 2) = 18
4. B. Added (4 x 3) to (8 ÷ 2)
Step-by-step explanation:
3. 3²(4 - 2) = 9(4 - 2)
= 9(2)
= 18