What is the solution to this system of equations? 3x + y = 17 x + 2y = 49 A. It has no solution. B. It has infinite solutions. C. It has a single solution: x = 15, y = 17. D. It has a single solution: x = -3, y = 26.

)a smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters (depth). what is the volume of the smart phone in cubic centimeters? (1 in = 2.54 cm)

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian 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? i need this done

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)