How much heat is needed to raise the temperature of 20.0g of H2O by 10.6oC?

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.