Solve the problem.Stevie bought a stereo for $260 and put it on sale at his store at a 70% markup rate. What was the retail price of the stereo?
A. $360.00
B. $342.00
C. $442.00
D. $520.00
Answer: C
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Solve the given differential equation.
= 6x5
A. y = (x6 + C) 2
B. y = (2x6 + C) 2 + 1
C. y = 
2 + 1
D. y = 
x12 + C
Solve the problem.Suppose an animal feed to be mixed from soybean meal and oats must contain at least 100 lb of protein, 20 lb of fat, and 12 lb of mineral ash. Each 100-lb sack of soybean meal costs $20 and contains 50 lb of protein, 10 lb of fat, and 8 lb of mineral ash. Each 100-lb sack of alfalfa costs $11 and contains 30 lb of protein, 8 lb of fat, and 3 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost?
A. 
sack of soybeans and 
sack of alfalfa
B. 0 sacks of soybeans and 2 sacks of alfalfa
C. 2 sacks of soybeans and 0 sacks of alfalfa
D. 
sacks of soybeans and 
sacks of alfalfa
Solve the problem.The voltage v (in volts) induced in a tape head is given by 
where t is the time (in seconds). Find the average value of v over the interval from t = 0 to t = 3. Round to the nearest volt.
A. 6502 volts B. 1100 volts C. 71,327 volts D. 16 volts
Evaluate the definite integral.
A. 10 B. 25 C. 20 D. 50