The inequality becomes :
350B+525F≤4500
Explanation:
Let the number of basil plants be represented by = B
Let the number of fennel plants be represented by = F
As each basil plant needs 350 ml of water, so B basil plants will need 350*B = 350B ml of water
Similarly, each fennel plant needs 525 ml of water so F fennel plants will need 525*F = 525F ml of water.
And both the plants need to be watered with a maximum of 4500 ml of water.
So inequality becomes: 350B+525F≤4500
