Solve using elimination. -7x – 5y = 5 -9x – 5y = 15
2 answers:
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Answer: $300
Step-by-step explanation:
Mr. Calvin earned
He spent on food i.e.
Remaining money =
So, he saved $300 after expenses
<em><u>The expressions that are polynomial are:</u></em>
6 + w
z + 1
<em><u>Solution:</u></em>
A polynomial is an expression with variables and coefficients with the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables
1) 6 + w
Here "w" is a variable, hence it is a polynomial expression
This is a polynomial, since it has variables and coefficients and variable with non negative exponent
3) z + 1
This is also a polynomial with variable "z" and has addition operation
Since it has root so it is not a polynomial