Elka can remember the phone number she just looked up only by repeating it over and over. when she stops saying it out loud, she forgets it. elka is using rehearsal to keep the information in memory.

maintenance; short-term

Explanation:

When she stops saying it out loud, she forgets it. Elka is using maintenance rehearsal to keep the information in short-term memory

Maintenance Rehearsal is the process of repeatedly verbalizing or thinking about a piece of information.

answer the amount a seller is paid minus the cost of production;

answer(8,000.)