1370 , 1320 , X, -180, -6430  Choose the correct choice from the following options: A) 1070 B) 6530 C) 6630 D) 6730 E) 6830
1370-50*(5^0)=1320   1320-50*(5^1)=1070   1070-50*(5^2)=-180   -180-50*(5^3)=-6430   1070NSWER:1070.
<result>A</result>
1370 , 1320 , X, -180, -6430