Answer:
66
-30
___
36
Step-by-step explanation:
The answer is 36 do 66 minus 36.
Answer:

With the vertex 
We see that b = -10 and a = 2 and then the vertes wuld be:

And the best option is:
b. (-10,2)
Step-by-step explanation:
For this problem we have the following function:

And if we compare this expression with the general expression for a parabola given by:

With the vertex 
We see that b = -10 and a = 2 and then the vertes wuld be:

And the best option is:
b. (-10,2)
Answer:
About 24.4
Step-by-step explanation:
Answer:
1,800
Step-by-step explanation: