Question

(-1/5)*3×(-1)*85×(2/5)*2 (*) it means power

Answer 1

$( - 1 \div 5) {}^{3} \times (- 1) {?}^{85} \times( 2 \div 5) {?}^{2}$
simplify these numerals
so we get,
= -1/125 × -1 ×4/25
=4/3125