Hi um so ya wow me being serious on this site...thats new can u do my sisters homework so she doesnt bug me thx 14 points & should be pretty simple

**provide steps**

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¯¯¯¯¯¯¯¯)?

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)