Solve using substitution:
x =1,y= 4
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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
Evaluate the given function with the following information: sin ? = 
(? in first quadrant) and cos ? = - 
(? in second quadrant).tan(? - ?)
A. - 
B. 
C. - 
D. 
Add and simplify. Write the answer as a mixed numeral if possible.
+ 3
A. 3
B. 3
C. 4
D. 4
Find the sum of the arithmetic sequence.{6n + 3}, n = 38
A. 4655 B. 4446 C. 4560 D. 4788