Lulu's bill for a meal at a restuarant is $45. A 6% sales tax will be added to the bill. She leaves a 15% tip on the entire bill. What is the total cost of her meal?

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

What is x3+3x2−16x−48 divided by x−1?