The answer is B.
I hope this helps. :)
Answer:

Step-by-step explanation:
The base function is given as

This graph opens up and has its vertex at the origin.
When we shift the graph of this function down by 9 units, its vertex is now at (0,-9)
The equation of this new graph is

Answer:
977.65
Step-by-step explanation:
Add three amounts together divide that number by 3.
2932.95/3=977.65
Answer:
first point at 100cm then the second point at 220cm
Step-by-step explanation:
put the first point at the starting time
the the second point at 220 but 20 mins after the starting time
Answer:
0.00534138
Step-by-step explanation: