<u><em>Answer</em></u>

<u><em>Explanation</em></u>
Based on the given conditions, formulate:: 
Substitute
into
:: 
Rearrange variables to the left side of the equation: 
Calculate the sum or difference: 
Divide both sides of the equation by the coefficient of variable: 
Cross out the common factor: 
Step-by-step explanation:
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Answer:
S=720
Step-by-step explanation:
25$ of 240 =60
60×12months=720
Answer:
B all square are regular polygons
For this problem, you're finding volume. The expression for volume is l•w•h (length times width times height).