Try the suggested solution (the answer is marked with red colour).
Answer:
A) 2C
Step-by-step explanation:
The relevant rule of logarithms is ...
log(x²) = 2·log(x)
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We know that 64 = 8². So, ...
log(64) = log(8²) = 2·log(8)
We are given that log(8) = C, so 2·log(8) = 2C
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Here, all logarithms are to the base 9. That does not change the relations shown.
Answer:
4
Step-by-step explanation:
Here’s the answer because I can’t do the arrow thing on phone
Your original price would have been $16.23
Take the new markup price and divide it by the percent it was marked up
17.85 / 1.10 = 16.227
1.10 represents 110%
Round your ending number because there are only two place holders after the decimal for calculating prices. By doing this we change $16.227 to $16.23.