Science
the energy in water pooled behind a dam is converted to energy as gravity causes the water to surge through tunnels in the dam. the energy in the moving water is then converted to hydroelectric power as the water spins turbines inside the dam.
magnetic; solar
solar; magnetic
kinetic; potential
potential; kinetic

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a. m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.