Answer:

Step-by-step explanation:

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Answer: The height and width of the aquarium are 13 inches and 10 inches respectively .
Step-by-step explanation:
Given : The volume of aquarium = 2730 cubic inches
Length of aquarium = 21 inches
Let x be the width of the aquarium,
then Height = x+3
We consider the shape of aquarium as cuboid.
Volume of Cuboid = Length x width x Height
Put values in the above formula , we get

So , the width of aquarium =x= 10 inches ( width cannot be negative)
So height = 10+3=13 inches.
Hence, the height and width of the aquarium are 13 inches and 10 inches respectively .
So, I'm not use to that type of currency, but I can still help you.
The equation would be:
145 + 60(d-1) = 445
Now since it is 60 per day after that, the first day would not be charge, the second would but you would not charge it more.
145 + 60d - 60 = 445
Add like terms
85 + 60d = 445
-85 -85
60d= 360
d= 6
You can even check using a table/ coordinates. x= days, y=money
(1, 145), (2, 205), (3, 265), (4, 325), (5, 385), (6, 445).
T is time, and s is speed. T is inversely proportional to s