Answer:
358
Step-by-step explanation:
set this equal to zero.
subtract 100 from 18000
divide by 50
=358
w [tex]\geq[/tex] 358
50w + 100 [tex]\geq[/tex] 18000
50w [tex]\geq[/tex] 17900
17900/50 = 358
hope this helps :)
