Parenthises
Exponent
Multiply
Divide
Add
Subtract
The answer is true because it comes before subtraction in the phrase PEMDAS.
Answer:
for the number 13
Step-by-step explanation:

by Pythagoras theorem
x= √81+36
x= √117
punch square root of 117 with a calculator, I don't have one now
P would equal -3/7
Hope it helps!