Find the amount of the sales tax or the tax rate and the total cost. Round money answers to the nearest cent.Cost of item: $120 Amount of tax: $3.60
A. 0.3%, $123.60
B. 4%, $123.60
C. 5%, $123.60
D. 3%, $123.60
Answer: D
Mathematics
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Simplify the rational expression.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.11x + 10x = 105
A. x = 
B. x = 5
C. x = 84
D. x = 
Mathematics
Solve. Write the answer as a mixed number as needed.Peter must practice the piano 10
hours per week. He has already practiced 2
hours. How many more hours does he need to practice?
A. 8
hours
B. 6
hours
C. 7
hours
D. 7 hours
Mathematics
Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.
A. 
B. 
C. 
D. 2n8
Mathematics