404,991
PEMDAS
Multiplication comes before subtraction
900x450=405,000
405,000-9=404,991
Answer:

Step-by-step explanation:
we know that
1 kg=1,000 g
so
using proportion
Find out how many kilograms are 69 grams
Let
x -----> the weight in kg

Answer:
$19.8
Step-by-step explanation:
To find the answer, find the ratio.
No, i would stay with my answer #1 and trust myself.