Answer:
Step-by-step explanation:
The result of expanding the trigonometry expression
is 
<h3>How to evaluate the expression?</h3>
The expression is given as:

Express
as
.
So, we have:

Open the bracket

Express 1 as cos°(Ф)

Hence, the result of expanding the trigonometry expression
is 
Read more about trigonometry expressions at:
brainly.com/question/8120556
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She originally had $400 in her bank account.
The 50w represents the amount she will put away each week.
37.22 gallon or if you round up it would be 37 and 1/4
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