Find the least common denominator.
, 
, 
A. 10x5y4
B. 6x5y
C. 15x20y12
D. 30x5y4
Answer: D
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Provide an appropriate response.Frank Orkwis weighs weekly as part of his weight loss routine. His weight for last week was 206 lb 12 oz. Today his weight is 199 lb 15 oz. How much weight did he lose?
A. 7 lb 3 oz B. 6 lb 13 oz C. 7 lb 13 oz D. 6 lb 3 oz
Solve the problem.Two friends live 34.5 mi apart. They cycled from their homes, riding toward one another and meeting 
hr later. If one friend cycled 1 mph faster than the other, what were their two rates?
A. 12 mph and 13 mph B. 9 mph and 10 mph C. 11 mph and 12 mph D. 10 mph and 11 mph
Use the distributive property to rewrite the expression. Simplify if possible.-9(3x) - 9(9y)
A. -9(3x + 9y) B. -9x(3 + 9) = -108x C. -27x - 81y D. -18(3x + 9y)
Provide the proper response.Give an example of a function for which the first derivative is always positive and the second derivative is always negative.
Fill in the blank(s) with the appropriate word(s).