How can you get 24 by using 1, 1/2, 3 and 6 (one each) with simple mathematical operations?

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

Choose the more precise measurement. 26.4 cm or 8.39 cm

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?