Find the sum of (x + 5) and (2x + 3)
, only serious i have had silly ones

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¯¯¯¯¯¯¯¯)?

If angle 2=3x +1 and angle 3=2x +4what is angle 2

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).