A garden store sells Kentucky bluegrass seed for $6 per pound and ryegrass seed for $3 per pound. How much rye must be mixed with 140 pounds of bluegrass to obtain a blend that will sell for $5 per pound?
A. 70 lb
B. 100 lb
C. 80 lb
D. 85 lb
E. 50 lb
Answer: A
Mathematics
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Simplify the expression. Write the answer using positive exponents.
-4
A. - 
B. - 
C. 
D. 
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Determine the two equations necessary to graph the horizontal parabola using a graphing calculator.x + 1 = (y + 8)2
A. y = 
- 8 and y = - 
+ 8
B. y = 
and y = -
C. y = 
- 8 and y = - 
- 8
D. y = 
and y = -
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Simplify the exponential expression.(x8y)2
A. x16y B. x16y2 C. x10y D. x10y3
Mathematics
Determine the domain of the function.f(x) = 
A. 
B. 
C. 
? 
D. (-?, ?)
Mathematics