Answer:
The equation is given by:

Step-by-step explanation:
During last years's charity walk, she raised $45.50.
During this years walk, she raised n, which is 7/10 of this amount. So, the equation is given by:

So from solving the problem, we know that the answer must equal -28.
When you solve all of the given options, we find that the only one that does equal -28 would be A.) (-6)(4) + (-6)(2/3).
When I doubt, solve it out. I hope I could help!
Answer:
D
Step-by-step explanation:
Terms are separated by addition and subtraction symbols.
Polynomials consist of terms that are constant and/or variable. The variable terms must have 0 or positive exponents. Polynomials will not consist of division of variable expressions.
Examples of polynomials:




Examples of non-polynomials:


In general a polynomial when written in standard form should be comparable to:

where the
's could be zero and all the exponents,n, are positive or 0.
D is comparable since all of these are 0 except
which is 1 and
which is -2.
Also the other choices have either division by variable expressions and/or negative exponents on variables.
Answer:
(x-5)²+(y-7)²=80
Step-by-step explanation: