Z+(z+6)z, plus, left parenthesis, z, plus, 6, right parenthesis ?

Josephine has a great garden with and area of 2x2 + x - 6 square feet

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 reflection image of (5,-3) across the line y = -x?