Solve using any appropriate method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.0.2x + 0.3y = 30.3x - 0.2y = 2
A. 
B. 
C. 
D. 
Answer: D
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Rationalize the denominator of the expression. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
The proprietor of the Showplace, a video store, has estimated that the rental price p (in dollars) of prerecorded video discs is related to the quantity x rented/day by the demand equation 
. Currently, the rental price is $4/disc.
?
Is the demand elastic or inelastic at this rental price?
?
__________
?
If the rental price is increased, will the revenue increase or decrease?
?
__________
What will be an ideal response?
Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = (x + 5)4 
A. 
B. 
C. 
D. 
Solve the logarithmic equation.log4 (x - 6) + log4 (x - 6) = 1
A. -8, 8
B. 
C. -
, 
D. 8