A little boy gets a haircut. The total cost is $24, and the tip should be is 10%. How much should the barber get as a tip? (show your work by setting up a proportion)

You and your best friend take a taxi ride that costs $16.40. The tip should be 10%. How much in tip does the driver get?(show your work by setting up a proportion)

A businessman buys 3 pairs of Vans for $35, $60, and $65. The sales commission rate is 3%. What does the salesman earn in commission? (show your work by setting up a proportion)

A Nintendo Switch Bundle was sold to a little girl for $399.99. The salesperson’s commission rate is 3.5%. How much did the salesperson earn in commission? (show your work by setting up a proportion)