1
7
y у
70
5
10
What’s the equation

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¯¯¯¯¯¯¯¯)?

Solve the equation x/4 - 5= -8 -27 -12 -7 12

What number line represents the solution set for the inequality -1/2 greater than or equal to 4