Serena's father tipped a taxi driver $5 for a $25 ride. what was the percent of the tip that he paid?

20%

Step-by-step explanation:

Given : Serena's father tipped a taxi driver $5 for a $25 ride.

Amount he paid for ride= $25

Amount he paid as tip = $5

Then, the percent of the tip that he paid :-

Hence, the percent of the tip that he paid = 20%

b=8

Step-by-step explanation:

-2b-7+8b=41

-2b+8b=41+7

6b=48

divide both sides by 6;

b=8