Mailynn, Grace and their friends went out for lunch. Their total bill was $52.30. If they want to leave a 15% tip, how much money should their gratuity (tip) be?

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?

Is there an x intercept in the equation 60*1.15^x

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?