Answer:
this is only a statement with no question so I'm just assuming the question here:
It would be cheaper to buy the $35/month plan if he uses under 575 min/month and cheaper to buy the $55 plan if using over 575 min/month
Step-by-step explanation:
$35 + x$0.16 = $55
-35. -35
_________________
x$0.16 = $20
÷ 0.16. ÷0.16
______________
x = 125 min
450 + 125 = 575 min