Joey's parents give him $8 per week for lunch money. hot lunch at school costs $2. write and solve an inequality to find the maximum number of hot lunches joey can buy each week

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