Answer:
it is 6/7, you can simplify that fraction by dividing with 7
For the order of operation use PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
For memorizing the order you could say
Please
Excuse
My
Dear
Aunt
Sally
$64.79 would be the cost after tax is added
Hi☺️ i think it is around the number of less than 2
hope this help !