Question

additive inverse of -1 muliply by -2/5

Answer 1

additive inverse of -1 is 1 . so 1×-2/5 is -2/5

Answer 2

$\ additive\ inverse\ of \ -1=1$
$\ and\ we\ know\ that\ any\ number\ multiplied\ by\ 1 = the\ number\ itself$
$\ so\ your\ answer\ is\ -2/5$
I hope it will help you