Verified Answer :

bcalle
  1. # books 2
    97     2 
    A

    14.   4.5 km/21 min  = 7.5 km = x min
    cross multiply
    4.5x = 7.5(21)
    4.5x = 157.5
    x = 35 min
    B

    15.  9.60/12 = x/4
    cross multiply
    12x = 4(9.60)
    12x = 38.40
    x = 3.20
    C

    16.  18% move decimal two places to the left and drop the % sign 
    0.18
    A

    17.  d = rt
    d = 2(55)
    d = 110 miles
    150 - 110 = 40 miles remaining
    A
Menna3aly

13) A
14)B
15)C
16)A
17)A

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