Solve the problem.Given the supply and demand functions below, find the demand when p = $12. S(p) = 5pD(p) = 120 - 4p
A. 72
B. 48
C. 132
D. 60
Answer: A
Mathematics
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Translate the phrase into a mathematical expression and then find the result.Multiply $31 by 54
A. 31 ÷ 54; $1774 B. 31 ÷ 54; $1664 C. 31 ? 54; $1674 D. 31 ? 54; $1684
Mathematics
Solve the problem.A painter can finish painting a house in 6 hours. Her assistant takes 8 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 
hr
B. 3
hr
C. 7 hr
D. 5 hr
Mathematics
The graph of the derivative of a function is given below. Sketch the graphs of two functions that have the given derivative.
?
?
A. ?
?1: 
2: 
B. ?
1: 
?
2: 
C. ?
?1: 
2: 
D. ?
?1: 
2: 
E. ?
1: 
2: 
Mathematics
The following matrix is a reduced augmented matrix obtained from a system of equations.
The solution to the system is:
A. 
B. 
C. 
D. no solution
Mathematics