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Prealgebra Semester 1 Final ExamName __________
#1. The sum of five and nineteen is equal to _______________.
#2. Eighteen minus ten is equal to _______________.

Determine the place value for the underlined digit.

#3. \( 30,384,2\underline{5}5 \)
#4. \( 3,\underline{0}47,234 \)

Evaluate the square root.

#5. \( \sqrt{324} \)
#6. \( \sqrt{225} \)

Evaluate the expression using the order of operations.

#7. \( 7\cdot6-1 \)
#8. \( 7\cdot5-6 \)

Place the number on the number line.

#9. eleven
#10. nine
#11. A random sample of 100 people is selected. Their ages are given by the histogram below. How many people are 40 years old or older?

Find the perimeter of the rectangle.

#12.

Find the area of the rectangle.

#13.

Perform the indicated operation.

#14. \(\frac{7}{2}+\frac{1}{8}\)
#15. \(\lparen-\frac{5}{3}\rparen+\lparen-\frac{17}{8}\rparen\)
#16. \(\frac{5}{3}-1\)
#17. \(6-\frac{19}{5}\)

Perform the indicated operation. Round to three decimal places.

#18. \(45\div0\)

For the mathematical statement, identify the property used.

#19. \( \lparen4+10\rparen +1 = 4+ \lparen10+1\rparen \)
#20. \( \lparen9+4\rparen +6 = 6+ \lparen4+9\rparen \)
#21. \( 7\cdot \lparen3 \cdot4\rparen = \lparen7\cdot 3\rparen \cdot4 \)
#22. \( 5\cdot \lparen1 \cdot10\rparen = \lparen5\cdot 1\rparen \cdot10 \)

Convert the ratio to a percent. Round to three decimal places.

#23. \(\frac{4}{5}\)
#24. \(\frac{1}{4}\)
#25. An account earns 3% simple interest per year. The principal is $1400. What is the balance after 4 years?
#26. An account earns 2% simple interest per year. The principal is $900. What is the interest accrued after 8 years?
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