On the day a certain celebrity proposes marriage, 888 people know about it. each day afterward, the number of people who know grows by 50\%50%50, percent. which expression gives the number of people who know about the proposal after 444 days?

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?

Darwin studied two different types of tortoises on the galapagos islands. sort the characteristics based on which tortoise they describe.

The difference between the observed value and the mean of the set of values is a