Respuesta :
Answer:
21
Step-by-step explanation:
4+(9•2)+(4-1)-4
PEMDAS says parentheses first
4+(18)+(3)-4
Then add and subtract from left to right
22 +3-4
25 -4
21
Answer:
21
Step-by-step explanation:
4+(9•2)+(4-1)-4
PEMDAS says parentheses first
4+(18)+(3)-4
Then add and subtract from left to right
22 +3-4
25 -4
21