Solve the problem.A thermometer reading 
is placed inside a cold storage room with a constant temperature of 
If the thermometer reads 
in 5 minutes, how long before it reaches 
Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to the nearest whole minute.)
A. 45 minutes
B. -16 minutes
C. 14 minutes
D. -1 minutes
Answer: A
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Solve for y.6x = 7y - 5
A. y = 
B. y = 12 - 6x
C. y = 12 + 6x
D. y = 
Use the change of base formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log6.5 4.2
A. 1.30 B. 0.62 C. 0.65 D. 0.77
Solve the problem.A repair company's charge for repairing a certain type of copy machine fits the model 
where y is the number of dollars charged and x is the number of minutes the repair person is on the job. How many minutes would it take for the cost of repair to reach $50? (Round to the nearest minute.)
A. 158 min B. 73 min C. 4 min D. 0 min
Solve the problem.A grocer sold 86 bags of potatoes for $0.96 each. What was the total amount of the sale?
A. $83.66 B. $82.56 C. $82.57 D. $82.66