answer is 399 2*2=4+21=25*3=75+20=95*4=380+19=399
Answer: 399 2, 4, 25, 75, 95, 380, ____ 2*2 =.........4 4+21=.......25 25*3=........75 75+20=.....95 95*4=.......380 380+19=..399 so, 399 is the answer.