Please solve the problem with the following kinematic equations:

Wes stands on the roof of a building, leans over the edge, and drops a rock. Lindsay waits 1.30 s after Wes releases his rock and throws her own rock straight down at 25.0 m/s. Both rocks hit the ground simultaneously. 1) Calculate the common height from which the rocks were released. Ignore the effects of air resistance. (Express your answer to three significant figures.)