Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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Evaluate u + xy, for u = 20, x = 8, and y =
10.
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2.
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Evaluate the expression  for a = 6 and b =
5.
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3.
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Evaluate  for x = –3 and y = 4.
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Simplify the expression.
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4.
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5.
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6.
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–6 + 9
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7.
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–4.7 – (–2.8) + 6.2
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8.
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9.
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10.
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11.
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12.
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1.4 – 2.8 – 3.54 + 4.2 – 4.43
a. | –5.17 | b. | –13.57 | c. | 1.91 | d. | 5.17 |
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13.
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14.
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 (–12 m + 38)
a. | m + 38 | c. | m +
76 | b. | –24m +  | d. | m +  |
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15.
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(–5 – c)(–1)
a. | –5 + c | b. | 5 + c | c. | 5 – c | d. | –5 –
c |
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16.
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–1 + 3
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17.
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Write  ,  ,  in order from least
to greatest.
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18.
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19.
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Evaluate –x + (–4.2) for x = –3.2.
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20.
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Evaluate b – 2a – c for a = 3, b
= 5, and c = –7.
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21.
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Evaluate x(–y + z) for x = 4, y = 10,
and z = –10.
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22.
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–6 ¸ (–6)
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23.
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Evaluate  for a =  and b =  .
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24.
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–10z – 28z
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25.
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7z – 10z
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