The owner of a hobby store bought a case of 9-volt batteries for $61.00. he marked the price up such that his profit was $3.75 per battery. once he had sold 14 batteries, the store owner has recovered his cost. how many 9-volt batteries are in a case

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy