Here already
y = -6
and y =1 / 3x -4
let's put y = -6
-6 = 1/3x -4
-6+4 = 1/3x
-2= 1/3x
-6x = 1
therefore x = -1/6
$20.01
step-by-step explanation:
the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.
srry idk