Answer:
$80
Step-by-step explanation:
500-390-30
50+3x+4 = 90
54+3x = 90
3x = 90-54
3x = 36
x = 12
3x+4 = 3(12)+4
= 36+4
= 40
I think your right my dude
come have IT with me baby
it will make us feel better