Answer:
6375
Step-by-step explanation:
-8
(x-3y=136) + (18x+3y=288) We collect both processes to make y's disappear
19x=-152
x=-8
-¾
gradient = delta y over delta x
gradient = 0 - 3 / 5 - 1
gradient = -3 / 4
$4.22 Is your answer.
432 ft^2