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I need help with 3 problems of Properties of Signed Numbers somebody please help me

I Need Help With 3 Problems Of Properties Of Signed Numbers Somebody Please Help Me class=
I Need Help With 3 Problems Of Properties Of Signed Numbers Somebody Please Help Me class=
I Need Help With 3 Problems Of Properties Of Signed Numbers Somebody Please Help Me class=

Sagot :

1. 2/3 - (1/4)*(4/9)
     2/3-4/36
     24/36-4/36
     20/36 also same as 4/9 (D)


2. It's B. (-3*(2*7)=(-3*2)*7

3. -4+(-6)*(-3)
     -4+18
      -14 (b)


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