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1)
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Simplify  .
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2)
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3)
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Add. 34 + (–21)
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4)
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5)
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a) | 1.98 | b) | 19.8 | c) | 0.0198 | d) | 0.198 |
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6)
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Simplify   .
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7)
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(–5 – c)(–1)
a) | –5 + c | b) | 5 + c | c) | 5 – c | d) | –5 –
c |
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8)
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9)
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–4.8 – (–4.9) + 5.7
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10)
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Subtract. –5 – (–8)
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11)
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12)
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13)
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Evaluate b – 2a – c for a = –7,
b = 3, and c = –7.
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14)
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15)
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Simplify  .
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16)
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17)
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Divide. –48  8
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18)
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Multiply. –2 • (–7)
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19)
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Evaluate 1 + x2 • 6 for x = 4.
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20)
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Evaluate x – (–10) for x = 12.
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21)
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22)
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´  =
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23)
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Evaluate x + (–9) for x = 35.
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24)
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Simplify by combining like terms. 
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25)
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Simplify  .
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