AYE CAN SOME ONE TELL ME HOW YO FIND SOMEONE ON HERE T-T DONT ANSWER IF U DONT KNOW

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?