Can someone please help me with this

which quadratic equation has two solutions or zeros​

It has to be the second one and it’s part of that answer or maybe it’s the third one

The sales tax rate is 5%

Given:
Sales price = 5.00
Total amount paid = 5.25

Sales tax value = Total amount paid - sales price
                          = $5.25 - $5.00 
Sales tax value = $0.25
Sales tax rate = Sales tax / Sales price
                        = 0.25/5 
Sales tax rate  = 0.05 or 5%