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),
Answer:
a
Step-by-step explanation:
It is choice A. Supplementary angles are angles that add up to 180. This means that the angle you are looking for will be 180-57, which equals 123.
