Find the principal (positive) square root of 15. If necessary, round the answer to the nearest hundredth (two decimal places).

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?

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

Find the average rate of change for the given function drom x=1 to x=2