What is the slope of the line passing through the points (1, 5/7) and (2, 2/7)

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

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

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?