C = 20 +15d because you already have to pay $15 plus $20 per day
So this is an in-out chart. so just follow the function.
<span>8t-r=12t
Add r to both sides
8t=12t+r
Subtract 12t from both sides so that t can only be on one side
-4t=r
Divide both sides by -4
Final Answer: t= r/-4</span>
Answer:

Step-by-step explanation:
relation between logarithmic and exponential form is given by
is same as
where a>0 and a is not equal to 1.
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Thus, exponential form is 