Question

How do we find the answer here?
20 points

Answer 1

`(250(n + 4))/(n) \geqslant 320`

`(250n + 1000)/(n) \geqslant 320`

`250 + (1000)/(n) \geqslant 320`

`(1000)/(n) \geqslant 70`

`(n)/(1000) \leqslant (1)/(70)`

`n \leqslant (1000)/(70)`

`n \leqslant 14`