Just took this quiz so here are the right answers:
1.) Henry- $578
2.) Karen- $25.33
3.) Nikos- $61,980
Hope it helps!(:
Answer:

Step-by-step explanation:
in the equation given these are the values:
a=1 b= -5 c= -7
if we plug this in the quadratic formula 
this is simplified to 
hope this helped
Answer:
Step-by-step explanation:
7
Answer:
Since we have given that
Surface area of sphere = 576 pi cm. sq.
As we know the formula,
Surface area of sphere is given by
So, the volume of a sphere would be
Hence, the required volume is 7241.14 cm³.
Step-by-step explanation:
Answer:
The answer is -7
Step-by-step explanation:
I took the test! Hope this helps <3