Solve the problem.A brick staircase has a total of 19 steps. The bottom step requires 124 bricks. Each successive step requires 4 less bricks than the prior one. How many bricks are required to build the staircase?
A. 1672 bricks
B. 3040 bricks
C. 1634 bricks
D. 3344 bricks
Answer: A
Mathematics
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Express in terms of sums and differences of logarithms.log7
A. log717 ? 
log7x ÷ log7y
B. log717 + 
log7x - log7y
C. log7y - log717 - 
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D. log7(17
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