Josh went to applebee and enjoyed a delicious steak. he enjoyed his server and wanted to give an extra special tip. usually josh tips 20% to all servers. today he tipped his server 25% of his subtotal. after josh ordered his dessert, his subtotal before tax was $21.00
how much did josh tip his server? how much more did he tip his server today, than he normally would tip? after the 7.5% sales tax, and the 25% tip, how much was josh's final bill

Josh's total bill is $ 27.825

Step-by-step explanation:

Given:

The subtotal of the Josh Bill =   $21.00

Finding the usual amount Josh gave as Tip To his sever:

Usually josh tips 20% to all servers

So Tip = 20% of his subtotal

=>

=>

=>

=>4.2

So Josh usually tips $4.2 to his server

Finding the amount Josh gave 25% as Tip To his sever:

But now he tips 25% which is

=> 25% of 21

=>

=>

=> 5.25

Thus the tip amount will be $5.25

So he will be giving (5.25 - 4.2) = $1.05 more than the usual tip

Finding the total bill

The total bill  = subtotal+ 7.5% sales tax +  25% tip

=> 21 + 7.5 % of 21 + 25% of 21

=>

=>

=> 21 +1.575 +5.25

=>27.825