Your lunch bill is $19.75. a 5% sales tax will be added, and you want to give a tip of about 20% of $19.75. estimate how much you will pay for lunch.

Total $19.75
Adding 5%
Taking away 20%

1). $19.75 x 0.20(20%) = 3.95
3.95 + 19.75 = 23.7

2). $19.75 x 0.05(5%) = 0.9875
0.9875 + 23.7 = 24.6875
 
= 24.6875

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