Well, if you look into it, inspect element thsi, really. I believe it is either A, Or C. But I am more strong with A.
Its simple what you do is you subtract not divide because if you where dividing you would be putting something into groups equally and not Addison because your not trying to find how much in all so it would be Subtraction another way is to see if there is how many more or How much more so if you see that then you know that its Subtraction! Hope this helps!:)
Answer:
74.088
or 74.09
Step-by-step explanation:
<h2>4.2³=</h2>
4.2
4.2
x4.2
74.088
<em>Rounded</em>
<h2>
↓</h2><h3>
74.09</h3>
-3 because i dont really know
So
1/2x+2=2/3x
convert to common fraction
1/2=3/6
2/3=4/6
3/6x+2=4/6x
subtract 3/6x from both sides
2=1/6x
multiply boh tisdes by 6
12=x
the tank can hold 12 gallon