What is the meaning of the underlined digit 648? the underlined number is 4 on the question

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¯¯¯¯¯¯¯¯)?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

The graph shows the amount of money noah earned based on the number of lawns he cut. which list shows the dependent quantities in the graph?