Verified Answer :

Campbellant26

42=3t+30
42=t+.1
Then simple divide using the rules you've learned.

1203ZGD

well we know that 3 • 14 is 42
and 3 • 10 is 30 
so we need 12 more and 3 • 4 is 12 so t=4

3 • 14 = (3 • 4) + (3 • 10)
   42    =   12    +     30
   42    =    42

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