Solve the problem.The cost C of manufacturing x units of a certain product is given by 
. Find the number of units manufactured at a cost of $12,300.
A. 110 units
B. 60 units
C. 90 units
D. 40 units
Answer: B
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Solve the problem.Jennifer Jones is an employee of Acme Manufacturing Company. She has an 8-hr workday and each day is paid $0.75 for each unit produced or the hourly rate, whichever is greater. Her hourly rate is $8.40 per hour. Last week she produced 93 units on Monday, 107 units on Tuesday, 80 units on Wednesday, 86 units on Thursday, and 103 units on Friday. What were her gross earnings for the week?
A. $357.65 B. $361.65 C. $351.65 D. $370.45
Solve the problem.In a certain population, the probability that a woman has red hair is 
. If a woman has red hair, the probability of her having freckles is 
. If she does not have red hair, the probability of her having freckles is 
. If a woman is chosen at random from the population, what is the probability that she will have freckles?
A. 
B. 
C. 
D. 
Refer to this figure to answer the question. Line DH is parallel to line IM. Line BO is perpendicular to line DH. 
m(?IJN) is 56°. m(?IJN) = m(?PLM). What is the measure of ?FGL?
A. Can't determine B. 124° C. 34° D. 56°
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation.-5x + 3y = 82x - 4y = -20
A. {(6, 2)} B. {(-6, -2)} C. {(-2, -6)} D. {(2, 6)}