Answer:
??
Step-by-step explanation:
I'm not sure! Let me think about it, and if I get something then I will let you know!!! ;D
60 + 0.50(x - 40) < = 270
60 + 0.50x - 20 < = 270
40 + 0.50x < = 270
0.50x < = 270 - 40
0.50x < = 230
x < = 230/0.50
x < = 460 miles
I think it is D 0°0 have a great day