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
Answer: C
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Use the frequency table below to answer the following question(s).
An outlier of a data set is defined as any data point more than 1.5 times the interquartile range above the third quartile or below the first quartile. The number of outliers in this data set is
A. 5. B. 10. C. 0. D. 20. E. none of these
Solve the problem.A painter can finish painting a house in 5 hours. Her assistant takes 7 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 2
hr
B. 
hr
C. 6 hr
D. 4 hr
Determine if the following is a linear equation in one variable. If not, state why.13x - 18 = 4x - 72
A. It is not a linear equation in one variable because it is not an equation. B. It is a linear equation in one variable. C. It is not a linear equation in one variable because it has more than one variable. D. It is not a linear equation in one variable because 13x has an exponent other than 1.
Set up the percent proportion for the application problem. Do not try to solve for any unknowns.15% of Tom's check of $730 is withheld. How much is withheld?
A. 
= 
B. 
= 
C. 
= 
D. 
= 