P=S1+S2+S3
P=2.3x+14+2x-0.2x+15
P=4.1x+29
The answer is the first one
Hope this helps
The equation in the given standard form is 
<h3>Equation of a circle</h3>
The standard equation of a circle is expressed as:

Given the equation 
Group the function to have:

Complete the squares to have:

Hence the equation in the given standard form is 
Learn more on equation of a circle here: brainly.com/question/1506955
Answer:
120 degrees
Step-by-step explanation:
plugged into calculator
cos inverse of -1/2
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That would be C . Constant rate .
A. or B. honestly. since doing y2-y1/x2-x1 would leave you with the answer of -15/0. but 15 divided 0 is “error” meaning undefined