670.65 which digit is in the tenths place

What 2 forces allow things to fall ‍♀️‍♀️

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¯¯¯¯¯¯¯¯)?

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?