Answer:
Refer to the attachment 
Step-by-step explanation:
<h3><u>Diagram</u><u>:</u><u>-</u></h3>

<h3><u>Note</u><u>:</u><u>-</u></h3>
View the ans from Web for complete diagram.
Answer:
Your answer is C. 8.
Step-by-step explanation:
Amplitude: 2
Period: 8
Vertical Shift: 3
(200plus79)x(20plus 1)
i am pretty sure
<u>Answer:
</u>
The population of a city has decreased by 38% since it was last measured. If the current population is 27,900 .Previous population of city was 45000.
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Solution:
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Given that current population of city is 27900.
Also, population of a city has decreased by 38% since it was last measured.
Let assume that population of city when it was last measured = x
Decreased of 38% means x-38% of x . we can write this as,



So current population is 
Equating above expression to the given value of current population, we get


x=45000
Hence previous population of city was 45000.