please solve all of the above
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6) (-400)
7) 5
8) 9
9)a)18
b)40
c)(....×-15). (....×7)
10)105
11)0
12)a)-11/120
b)199/210
13)a)731/15
b)3339/15. =} 1113/5(on simplying it)
14)a)150 g
b)5/21
c)16 hours
d)78/55
15)a)125/33
b)12/5
Step-by-step explanation:
I hope this helps you
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