The answer is x=-7
8x-7x-2=-9
8x-7x=-9+2
-7
It would cost $19.50. hope that helped
Once you plug in -18 as x you divide it with 6 and the answer of that is -3 then you add 17 and -3 and your output will be 14!
Answer:
The derivative is

Step-by-step explanation:
The function is given by

Differentiate with respect to x, we get

It is NOT possible to determine the missing value from the given data.
<h3>Mean and Median</h3>
Mean is the average of a number of data while the median is the number at the middle of the given data.
- For a given data with a missing value, we can only find the missing value by calculating the mean of the data and equating the given mean.
Hence from the given data, it is NOT possible to determine the missing value from the given data.
Learn more on median and mean here; brainly.com/question/14805451