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1) name the property illustrated:             a) -4 • (7 • 2) = (-4 •...

1) name the property illustrated:
     
      a) -4 • (7 • 2) = (-4 • 7) • 2

       b) 3 • (2 • 4) = 3 •(4 • 2)

2) what is the multiplicative inverse and additive inversion of:
      
      a) 17

      b)   - 4/5

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