Help pls this is due

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

What is the highest grade you can score on the act

The structure of adenosine triphosphate (atp) is shown here. which statement best explains how energy stored in the chemical bonds of atp can be released.