Question

Упростите выражение
1. (-5xy)×(-1/4x^2)×(-16y)
2. (7m^5n^2p)(-4mn^4p^2)(-1/4m^2n^3p^2)
3. 6 1/2x^3yz^2)x(2 2/13x6yz^3)
4. 2,5ap^2c)^2 (4pc^2/15)(-9ca^3/2)(-0,4a)
5. (-4 3/4mn^2)(-17/38amn)(-16a^2mn/170)