Solve mathematics problem in photo ! : ) first.

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

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¯¯¯¯¯¯¯¯)?

Which number line represents the solution set for the inequality - x 24?