$-29--16:4·3$

= $-29-\left(-4\right)·3$

= $-29+12$

= $-17$

$(-9·\left(-25-\left(-20\right)\right)):\left(-60:6:\left(-2\right)\right)$

= $(-9·\left(-25+20\right)):\left(-10:\left(-2\right)\right)$

= $(-9·\left(-5\right)):5$

= $45:5$

= $9$

$32:\left(40:\left(-10\right)\right)·\left(-12:6\right)$

= $32:\left(-4\right)·\left(-2\right)$

= $-8·\left(-2\right)$

= $16$