Let
x-------> the number of hours
y------> the temperature in degrees Fahrenheit
we know that
For 

For 

The domain of the function is the interval----------> ![[0,30]](https://tex.z-dn.net/?f=%5B0%2C30%5D)

The range of the function is the interval----------> ![[-10,30]](https://tex.z-dn.net/?f=%5B-10%2C30%5D)

therefore
<u>the answer is</u>
The domain is all real numbers 0 through 30
7x-5<13x-3
Minus 7x
-5<6x-3
then add 3
-2<6x
Then divide -2 by 6 and 6x by 6
-1/3>x
I think thats right
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➷ Calculate the number of hours:
24 x 3 = 72
72/13 = 5.5....
This is 5 whole half lives
You have to half the value 5 times
149/2 = 74.5
74.5/2 = 37.25
37.25/2 = 18.625
18.625/2 = 9.3125
9.3125/2 = 4.65625
The closest value is B. 3.21 so that should be the answer
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✽</u></h3>
➶ Hope This Helps You!
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Step-by-step explanation:
Answer:
called unit rate .
Step-by-step explanation: