Respuesta :
Answer: 399
Step-by-step explanation:
For this you are going to use
PEMDAS or Please Excuse My Dear Aunt Sally.
P-parentheses
E-exponents
M-multiplication
D-division
A-addition
S-subtraction
You will use this system for every equation. First you do whatever is in your parentheses. (20-8)=12 Then you do your exponents. Which is 4x4x4=64. You then do any multiplication or division in the problem 64x12=768. You then divide by 2 which equals 384. You then add 6 and 9. Which equals 399.