Gavin has 50000 with which to start a new business.

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?

The different layers of gases that extend form the surface of the earth into space

Compare the advantages and disadvantages of using cash instead of a credit card to obtain good services