Answer:
there's a choices maam... can you shoe to me? so I can answer your question correctly :)
Did I understand correctly, the first number is:

?
in other words, this would be:

and if you drink half of it, then we divide this number by 2:

because 30/2=15
so you would have

still more than a daily dose!
Answer: 330 ft
Step-by-step explanation: 5x11x6 = 330
5x11= 55
55x6=330
When your trying to find the area of something you always multiply. Hope this helped :)
Let the width = x -12
the length = x
we have this area equation: x(x-12)=380.16
=>x^2-12x-380.16=0
=>(5x-132)(5x+72)=0
=>x= 132/5 and x= -72/5 (no)
=>The width of the poster is: 132/5 -12 =72/5 inches
It would be 110.888888889.
Hope This Helps You!
Good Luck Studying :)