If y=-4+11 and 3x+y=9 what is the value of y?

If 20% of a number is 35, what is 50% of that number?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?