Logarithmic and exponential functions are the inverses of each other; that is, their x and y-ordinates are interchanged. As such, this begs the question of "how would you articulate the relationship between one another in verbal language?"
Rule 1, in logarithmic laws, state that any logarithmic function can be rewritten in exponential form.
Take the general case:

For all logarithmic laws in this form, there are several ideas and names that we need to consider.
Since their relationship between one another are inverses, we can rewrite it in another way.
For instance, the inverse of

becomes

Now, we still have an exponential as our inverse, but another theorem we know is that for any exponential function, its inverse will be its logarithmic function, so this begs another question: "how do I rewrite this in logarithmic form?"
Since we want y the subject, we need to consider taking the logarithm of the base.

Thus,

But, we know that

So,

becomes:

And this is true for any exponential and logarithmic functions.
They should subtract $ -20 because they went behind on how much they planned to save. Now this question can be tricky because some might say they lost 0 because they already had an extra $20 but it is only asking for the month of February and is only asking for each month not the entire year.
The small pizza increased its price by 50%
The answer and the work are provided in the image attached.
9514 1404 393
Answer:
c) 70 toothbrushes per minute
Step-by-step explanation:
The table tells you that production is 140 toothbrushes in 2 minutes. Dividing toothbrushes by minutes gives you the "per minute" value:
(140 toothbrushes)/(2 minutes) = (140/2) toothbrushes/minute
= 70 toothbrushes/minute