math i need help please
posted by makeeda .
evaluate the expression
7d5cif d=7 and c=3
a)50
b)40
c)20
d)34

math i need help please 
bee
substitute the numbers given...
7(7)5(3)
4915
34 
math i need help please 
The puzzler
7*7= 49
5*3= 15
4915=
34
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