Câu 9 mọi người giải dùm e với ạ

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3