At the point of sale, the merchant would calculate the amount owed by the customer and indicate the amount, and may prepare an invoice for the customer (which may be a cash register printout), and indicate the options for the customer to make payment.
Performing push-ups works a variety of muscles in your upper body, including specific muscles within your abdomen, chest, shoulders and upper arms. You can vary your technique by placing your hands at different widths to emphasize one area over another.
Although many people use push-ups as an exercise to strengthen their abdominal muscles, the target muscles of this exercise are your pectoral muscles, located on each side of your chest. Your abs, however, play a role in the execution of push-ups.he Right Amount of Push-Ups. As is the case with any muscle group, you must give your abs time to recover between workouts. The length of time needed for recovery varies from person to person, but typically, you should not exercise your abs on consecutive days.