1.   Sarah must maintain a balance of at least $500 in her checking account to avoid finance charges. If her current balance is $794, write an inequality to determine how many times she can withdraw $25 for shopping without paying finance charges.
    A. 25w 294 B. 25w 794
    C. 25w 500 D. 25w 106
    Hint

  2.   Students from the local high school are selling tickets to the town's annual carnival. Adult admission is $5.00 and child admission is $2.50. Two hours after the carnival opened its first day, 440 tickets had been sold totaling $1900. How many adults and how many children entered the carnival during the first two hours it was open?
    A. 293 adults, 147 children
    B. 320 adults, 120 children
    C. 220 adults, 220 children
    D. 380 adults, 760 children
    Hint

  3.   Use elimination to solve the system of equations shown below.
2x - 4y = -5
3x + 4y = -15
    A. B.
    C. D.
    Hint

  4.   Solve the equation x2 = 0.81.
    A. x = -0.9 only
    B. x = 0.9 only
    C. x = 0.9 or x = -0.9
    D. none of these is correct
    Hint

  5.   Find .
    A. B.
    C. D.
    Hint

  6.   Find the difference:
    A. -3x2 + x - 5 B. -3x2 - 7x - 5
    C. 3x2 - 7x - 5 D. -3x2 - 7x + 1
    Hint

  7.   Simplify
    A. B.
    C. D.
    Hint

  8.   Find the product of (4n + 5) and (2n + 3).
    A. 8n2 + 22n - 15
    B. 6n2 + 20n + 12
    C. 8n2 + 22n + 15
    D. 6n2 + 18n + 8
    Hint

  9.   Find the equation that contains a decreasing linear relationship.
    A. y = 4x – 3 B. y = 5 – 6x
    C. y = 12+ 2x D. y = 10 + x
    Hint

  10.   What is the equation of a line that has a slope of –1 and passes through (–2, 0)?
    A. y = –x – 2 B. y = –x – 1
    C. y = –2x + 1 D. y = –x + 2
    Hint

  11.   Consider the equation xy = 3. What happens to the value of y when x doubles?
    A. y quarters B. y triples
    C. y halves D. y doubles
    Hint

  12.   What is true of the second differences for the equation x2 – 6x + 12?
    A. they are constant
    B. they decrease by 1
    C. they increase by 1
    D. they increase by 12
    Hint

  13.   What type of relationship does the equation have if its second differences are constant?
    A. constant B. quadratic
    C. cubic D. linear
    Hint

  14.   Find the values for m and n which the conjecture (m – n)2 = m2 – n2 is false.
    A. m = 1, n = 0 B. m = –2, n = 0
    C. m = 1, n = 1 D. m = 1, n = 2
    Hint

  15.   The population of fish in Mark's lake is 500 this year. If the population increases by 6.9% a year, what number can Mark multiply this year's population by to estimate the fish population in the lake next year?
    A. 6.9 B. 0.0931
    C. 1.069 D. 1.69
    Hint

  16.   Identify the growth factor in the equation p = 682,363 × 1.08n where p is the population and n is the number of years after 2001.
    A. p B. n
    C. 682,363 D. 1.08
    Hint

  17.   Which equation represents exponential decay?
    A. y = 63 × 4x B. y = 63 × 0.4x
    C. y = 63 × 4.4x D. y = · 63x
    Hint

  18.   How could you use the graph of h = 20t – 6t2 to estimate the solution(s) of 20t – 6t2 = 7, where h stands for height and t stands for time?
   
    A. Draw a vertical line at t = 20 and find where it intersects the curve.
    B. Draw a vertical line at t = 7 and find where it intersects the curve.
    C. Draw a horizontal line at h = 7 and find where it intersects the curve.
    D. Draw a horizontal line at h = 20 and find where it intersects the curve.
    Hint

  19.   How many solutions can a graph of y = ax2 + bx + c have?
    A. two B. all answers are correct
    C. one D. zero
    Hint

  20.   Scale the figure below by.
   
    A. B.
    C. D.
    Hint



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