Answer:
C
Step-by-step explanation:
x=60
60
60+30=90
60-30=30
60+90+30=180
Answer:
,
,
, 
Step-by-step explanation:
i got it right
For the first question, simply plug in the value of 3 into the polynomial question. The final answer is your volume of the hot water tub.
For the second question, you can figure out that x = -5 is not a real root because it does not touch or cross the x axis.
If it does it would be an solution.
This looks like an incomplete answer to me...
I cannot see any diagram or window or opening, or any lines that indicate they are line AC or BD.