What value of d makes the equation true 2/9=d/27

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take