Find a common multiplier between both which would be 4. then divide each term by 4. all you have left stays in the parenthesees.
4 (2x+5)
2.5 divided by 2 equals 1.25 so each side equals 1.25
I don't really know but I think that it's B
The volume of a rectangular prism is its length times width times height, or algebraically,
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. You may be used to computing volume with numbers, but remember, a variable is a stand-in for a number. So you can solve this in the same way. Substitute
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into the formula for volume. You get
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, and you multiply these factors together. As you would with ordinary fractions, multiply the numerators and denominators across. You get

. It seems that the book wants you to simplify by bringing the 6 up to the denominator. Recall the rule
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, if n is non-negative. The opposite applies so that

. For your final answer, you write
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. This corresponds to
answer choice B.
1. y = 7
2. 0
3. m = -1
4. k = -4
5. x = -6
6. There is no solution for these equations.
Please let me know if you want explanations/work shown!! Hope this helps :)