If f(x)=3x+2, what is f(5)

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?

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle

Adc is formed by reflecting abc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of adc square units. it wont let me put the picture but its a triangular pyramid thats abcd