Calculate the sum.(+49) + (-93)
A. -44
B. -142
C. 142
D. 44
Answer: A
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Solve the problem.How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol?
A. 12 gal B. 7 gal C. 27 gal D. 36 gal
Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
E. 
Solve the problem.In the table below, the amount of the U.S. minimum wage is listed for selected years. 
?
Find an exponential regression model of the form y = a ? bx, where y represents the U.S. minimum wage x years after 1960. Round a and b to four decimal places. According to this model, what will the minimum wage be in 2005? In 2010?
What will be an ideal response?
Write an equivalent expression using radical notation and, if possible, simplify.(mn)1/6
A. (mn)-6
B. 
C. 
D. 