Answer:
400m
Step-by-step explanation:
It s be the perimeter.
Length X2 sides + width x 2 sides
125 X2 sides + 75. X2 sides
250 + 150
400m
The exponent of -9 indicates the decimal point has been moved 9 places to the right. Undo that.
= 0.00000000614
6. if the number is 91.8, your answer is 459
7. 50 percent
8. 85 percent