Step-by-step explanation:
The line above the letter means "complement". If X is a set, the the complement of X (denoted by X with a line above it) is the set of all things not in X...If X is a set, then the complement of X (denoted by X with a line above it) is the set of all things not in X.
Sorry if it was complicated
C: 60.9% is the right answer
Step-by-step explanation:
The markup is calculated by using the formula

Given
Make Price = $22.99
Selling Price = $36.99
So the mark up will be:

Percent mark up will be:

Rounding off to the nearest hundredth percent
60.9%
Hence,
C: 60.9% is the right answer
Keywords: Markup, Percentage
Learn more about percentage at:
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Answer:
They are two angles that have a common vertex and a common side.
Step-by-step explanation:
Answer:
Last Option
Step-by-step explanation:
We have a triangle and we know its three sides.
We want to find one of your anguos. Then we use the cosine theorem.

Where

Now we solve for x from the equation
