D = r t
384 = 640 * t
384/640 = t
.6 = t .6 of an hour
.6 hr * 60min/1 hr = 36 minutes (just in case it needs to be in minutes)
Answer:

Step-by-step explanation:
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Let's find the surface area of the pink rectangular prism first.




The surface area for the pink rectangular prism is
.
-------------------->>>>>
Now, let's find the surface area of the green rectangular prism.




The surface area for the green rectangular prism is 144
.
-------------------->>>>>
Now let's add the surface area of both rectangular prisms to find the surface area of the composite figure.


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Hope this is helpful.
Answer:
Step-by-step explanation:
4x-2(x-6)-x=4x-2x-x+12
=x+12
Answer:
Its D.
Step-by-step explanation:
All you have to do is divide 3 1/2 by 1/2.
The table tells you that f(x)=0 at x=-6 and -2