Answer:
0 ( zero) is a number, and the numerical digit used to represent that number in numerals. It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems.
Answer:
The expression represents the price you paid per gallon is:
- Price paid per gallon =

Step-by-step explanation:
To identify the expression is right, I'll show you with an example: suppose that you paid $56 buying 7 gallons of gas, now you can replace those values in the expression I gave you:
- Price paid per gallon =

- Price paid per gallon =

- Price paid per gallon = 8
And you can check this value by multiplying the price paid by the gallon and the number of gallons, which you obtain the number of dollars you spent:
- <u>Number of dollars (d) = 8 * $7 = $56 </u>
The answer would be -10 if you want me to explain tell me to <span />
solve for the indicated variable means isolate that variable.
Ans(7)
P=IRT (T)
that means solve for T or make T alone on one side of equal.
To do that we just need to move IR on the left side
So we get:

Hence final answer will be 
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Ans(8)
2x-3y=8 (y)
-3y=8-2x

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Ans(9)
V=LWH (L)

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Ans(10)
A=2(L+W) (w)
A=2L+2W
A-2L=2W


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Ans(11)
ax+by=c (y)
by=c-ax

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Ans(12)
(R)
PN=R-C
PN+C=R
R=PN+C
Answer:
x > 4 for an inequality :)
Step-by-step explanation: