How many models of 100 do you need to model 3,200

Name the most appropriate metric unit for each measurement like the mass of cow

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?