Answer:
See below.
Step-by-step explanation:
1) Please check the number of volume of steel. It should be 54,259.2

. Not 54,259.2 cm. Right?
2) If so,
First
The volume of single rod

The number of rods

Answer: 2,580
Step-by-step explanation:
215,000 x .012 = 2,580
Answer:
Maybe it could be six or 30
Step-by-step explanation:
Answer:
The First one: f(-2) a. 9
good luck!