Answers:
Rose: y=500
$500
Summer: y=15x+200
$575
Poppy: y=30x
$750
Daisy: y=12.50x+350
$662.5
Violet: y=6x+450
$600
*Make sure you plug the 25 hours in yourself to double check my answers.*
Explanation:
I just wrote the equation in number form and plugged the 25 hours in.