PLZ HELP ME WITH THIS

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years