Find the difference.
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?
A.
B.
C.
D.
E.
Answer: A
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Use the quotient rule to simplify the expression. Write the answer with only positive exponents.
A. 320
B. 
C. 1
D. -310
Factor.5c4 - 625cd3
A. 5c(c - 5d)(c2 + 5cd + 25d2) B. 5c(c + 5d)(c2 - 5cd + 25d2) C. c(c + 5d)(c2 - 5cd + 25d) D. 5(c + 5)(c2 - 5c + 25)
Solve the problem.A retailer knows that n games can be sold in a month at a price of 
dollars per game. Assume that he buys each game for 
and sells every one that he buys. If he wishes to make a profit of at least 
per month on sales of this game, how many games must he sell each month?
A. 0 ? n ? 20 B. 20 ? n ? 70 C. 20 ? n ? 50 D. 25 ? n ? 35
Losses in a long telephone line reduce a 20-watt input signal to an output of 5 watts. Find the db gain. (Because it is a loss, the "gain" will be negative.) ? Please give the answer to two decimal places.
Fill in the blank(s) with the appropriate word(s).