The answer would be $697.5
Hope this helps!
Okay so a couple of things to know to best solve this problem
1) all angles in a triangle add to 180
2) a straight line the angles above it equal 180 and the angles below it add to 180
3) vertical angles are equal (vertical angles are angles that make an X the opposite angles are called vertical angles)
Step-by-step explanation:
y iterscept is -4 slope 2/3 rise over run