Evaluate the expression for the given value or values.
for a = 10, b = 4, c = 5, d = 7
A. 
B. - 7
C. - 3
D. 
Answer: D
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The owner of a candy store mixed some peanuts worth $2 per pound, some cashews worth $8 per pound, and some Brazil nuts worth $8 per pound to get 50 pounds of a mixture that would sell for $5 per pound. She used 15 fewer pounds of cashews than peanuts. How many pounds of each did she use?
A. 15 lb peanuts, 10 lb cashews, 25 lb Brazil nuts B. 15 lb peanuts, 20 lb cashews, 30 lb Brazil nuts C. 25 lb peanuts, 10 lb cashews, 15 lb Brazil nuts D. 30 lb peanuts, 15 lb cashews, 20 lb Brazil nuts E. 10 lb peanuts, 25 lb cashews, 15 lb Brazil nuts
Use Euler's formula to answer the question.A prism has 12 edges. How many vertices and faces does it have?
A. 2, 8 B. 2, 4 C. 8, 6 D. 4, 6
Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.(4r)7(4r)-6
A. 4r
B. 16r13
C. 
D. 16r
Graph the quadratic function.f(x) = x2 - 4x
A. 
B. 
C. 
D. 