7y+2(5y-9)=16
7y+10y-18=16
17y=34
y=2
5(2)-9=x
10-9=x
x=1
Given data:
The given table.
The expression for the average temperature is,

Thus, the value of x is 86 degree Fahrenheit.
<em>Your Answer: </em>A.) (2 , 5) <u>I also provided the steps.</u>
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Answer:
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Answer:

Step-by-step explanation:
First, multiply the 3 and the 7 together, and then "multiply" the exponents -8 and 3. (However, when "multiplying exponents, you're really just adding them together: -8 + 5)
(
)^2
Then, multiply the -5 and -2 together, giving you:
