A boat travels at a speed of 20 miles per hour in still water. It travels 48 miles upstream, and then returns to the starting point in a total of five hours. The speed of the current is ? miles per hour

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Use circumcenter theorem to solve for the given values