Find the measure of each angle using a calculator or the trig chart round to the nearest whole degree

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?

Which of the following is true for the relation f(x)=2x^2+1

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?