A bolt is dropped from a bridge under construction, falling 98 m to the valley b

Question

A bolt is dropped from a bridge under construction, falling 98 m to the valley below the bridge. (a) How much time does it take to pass through the last 19 % of its fall? What is its speed (b) when it begins that last 19 % of its fall and (c) just before it reaches the ground?
(a) Number 0.45 Unit s this is correct
(b) Number -39.396 Unit m/s incorrect
(c) Number -43.806 Unit m/s incorrect

I dont know what I am doing wrong, here is my work.
Time b) times found from a are 4.02 and 4.47
v= -9.8 t = -39.396 and c) v= -9.7t = -43.806

Explanation / Answer

nvm I got it, it was asking for speed so positive values drrr thanks anyways

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