Answer:
Decay
Step-by-step explanation:
We are given an equation 
We need to say about decay or growth of exponential function.
Exponential function: 
Where,
- a is initial value of exponential function.
- b is decay or growth of function
For decay: 0<b<1
For growth: b>1
Now we rewrite the equation into this form
Changes to
Here, b=0.5 < 1
Therefore, The given function would be decay.
Thus, is deacy.
Ummmm................... I think you need to stick to the guidelines
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Answer:
12 hours
Step-by-step explanation:
We can set up an equation to model the situation:
y = 9x + 50
Now, we can plug in 158 as y and then solve for x:
158 = 9x + 50
108 = 9x
12 = x
Hey there!
When dealing with expressions, there are three terms that show up often: coefficient, variable, and constant. A variable is an unknown term commonly represented by a letter in equations (e.g. x, y, etc.) and a coefficient is a number attached to a variable (in your problem, 7 would be the coefficient of x, your variable, in 7x). That leaves your constant, which is simply a number that stays the same and doesn't contain a variable (e.g. 8, 10, 123, etc.).
Your answer will be "5".
Hope this helped you out! :-)
