Rubyat picks out a drill at the hardware store with a price tag of $48. she has $50 so she thinks she can afford it. she forgot about the sales tax rate of 5% though. does she have enough money to pay for the drill?

Hey there,
100% = $48
1% = $48 / 100
        = $0.48
5% = $0.48 x 5
      = $2.40
Total cost = $2.40 + $48
                = $50.40
Amount she needs = $50.40 - $50
                               = $0.40

Thus, she does not have enough money to buy the drill, she needs $0.40 more.

Hope this helps :))

~Top♥

Graph a should be your answer