How do i find the height/altitude of this triangle? need help asap

Kinu wants to buy topsoil for a section of her garden that has the dimensions shown in the figure. each bag covers 2 square yards. how many bags of topsoil should kinu buy? explain how you found the answer.

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?