Erika is working on solving the exponential equation 50^x = 17; The solution is x = 0.7242.
<h3>What is logarithm?</h3>
When you raise a number with an exponent, there comes a result.
Let's say you get
a^b = c
Then, you can write 'b' in terms of 'a' and 'c' using a logarithm as follows

'a' is called base of this log function. We say that 'b' is the logarithm of 'c' to base 'a'
Erika is working on solving the exponential equation 50^x = 17;
however, she is not quite sure where to start.
The equation is

By taking the log both sides

By using the base formula

So, 

x = 0.7242
Learn more about logarithm here:
brainly.com/question/20835449
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Addition and Subtraction in Scientific Notation. A number written in scientific notation is written as the product of a number between 1 and 10 and a number that is a power of 10. That is, it is written as a quantity whose coefficient is between 1 and 10 and whose base is 10.
Answer:
58
Step-by-step explanation:
the mean is adding up all the numbers, then dividing by the amount of the numbers.
add up all the numbers:
13 + 13 + 14 + 18 + 22 = 80
the mean is 23.
so you need to back track:
23 * 6 = 138
138 - 80 = 58
I believe it would be 80
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