Don’t mod this look at picture

$51.00

Step-by-step explanation:

Since $0.20 is charged per minutes , that is , the amount charged for 300 minutes will be :

300 x 0.20 = $60

Her monthly cell phone plan charges a flat monthly fee of $25.00 , that is the total amount charged will be

$60 + $25

= $85

There is a 40% discount , then we have

40% of $85

= $34

So, the amount of her first cell phone bill = $85 - $34

= $51.00