Determine whether the argument is valid or invalid.If your father fixes the car, then you will go to the museum.Your father will buy a wrench or you will not go to the museum.Your father fixes the car. Therefore, your father will buy a wrench and you will go to the museum.
A. Valid
B. Invalid
Answer: A
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Solve the problem.The demand for a specialized oil-drilling engine is given by the demand function D(x) = 
where x is the number of units produced each day and D(x) is the number sold each day. Assume that x is an integer. What is the daily demand for this item (units sold each day) if 15 units are produced each day? Round to the nearest integer.
A. 67 units per day B. 28 units per day C. 48 units per day D. 63 units per day
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.ln 
A. ln e3 + ln 8 B. ln e3 - ln 8 C. 3 + ln 8 D. 3 - ln 8
Simplify the expression.
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?
?
A. 
B. 
C. 
D. 
E. 
Provide an appropriate response.Give one number between -8 and 8 that is a negative real number but not an integer.
A. Not possible B. -6.345 C. -6 D. 6.345