6 Adam, Ben and Charlie share some money.
Adam gets 1.5 times as much as Ben.
Ben gets 3 times as much as Charlie.
If they shared £68 in total, how much does Charlie have?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax