Last month dory biked 11 times as many miles as carly together dirt bike the total of 156 miles how many miles did dory biked last month?

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