URGENT PLS HELP ME! *GEOMETRY*

WILL MARK BRAINLIEST

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

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Describe a situation that you could represent with the inequality x< 17