Order of Operations First Expression

What would be my first step to simplify?
3 + 4 x 6 - 4 

• addition

• multiplication

• subtraction

• exponents

Evaluate the expression: 9 + 9 ÷ 9 + 9

• 36

• 19

• 9

• 11

What operation comes first and WHY?

• Multiplication, because it is inside the parenthesis

• Multiplication, because you read left to right

• Division, because it comes first alphabetically

• Subtraction, because it's easy and gives the answer 1

Evaluate the expression: 90 - 5² x 3

• 15

• 240

• 195

Evaluate the expression: 2 + (9² - 4)

• 16

• 27

• 79

• addition
  

• subtraction

• multiplication

• division

• addition

• multiplication

• parenthesis

• subtraction

• division

• exponent

• multiplication

• addition

• exponent

• parenthesis

• division

• subtraction

• exponent

• division

• addition
  

• subtraction