She is incorrect, her statement comes with no solution.
Answer:
The answer is the 3rd one or C
hope this helps:)
Step-by-step explanation:
Divide the mass of the full pipe by the length of the full pipe:
800 grams / 150 cm = 5.33 grams per cm.
Multiply grams per cm by the new length:
5.33 x 70 = 373.33 grams ( Round the answer as needed),
I can't see the graph picture
The answer is the square root of 45
