Ascientist from the united states conducts an experiment using miles per hour to measure speed why might this be confusing for scientists and other countries

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?

Choose the more precise measurement. 26.4 cm or 8.39 cm

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?