Help plz

Suppose the probability of selling a car today is 0.28. find the odds against selling a car today.

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

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6